Anyone here a mathematician? Question on the number 68

Reply #11

marcie — Mon, 08 Feb 2010 21:38:47 GMT

Reply #10

marcie — Mon, 08 Feb 2010 21:37:04 GMT

Reply #9

marcie — Mon, 08 Feb 2010 15:45:26 GMT

The 680 has been out a few times too, I think the same day she posted it in Mystical.

Reply #8

friendship — Tue, 02 Feb 2010 03:38:02 GMT

0086 was played in Miami today......lol

Reply #7

marcie — Thu, 07 Jan 2010 15:07:11 GMT

Every tried to use it with 0

Reply #6

Pinkpansies — Thu, 07 Jan 2010 13:14:15 GMT

Sorry, you're right. I was not able to transfer the full sequence. If you are interested in it go to Wikipedia and look up Perrin numbers . The version I posted was the overall simplified form. It is a complex equation. I actually just plugged in the 0 and made sure it checked out.

Reply #5

jwhou — Thu, 07 Jan 2010 02:13:58 GMT

I must be missing something here, when X=1, the result of (3-X2)/(1-X2-X3) is -2. This is because the square and cube of 1 is still 1 so the numerator works out to be 2 and the denominator works out to be -1. So starting with 0, I get the sequence of:

3, -2, 1/11, 6/35, 13/79, 22/149 ...

The number 68 does bring up the joke that 68 is the speed limit of love making because it flips around at 69.

I think the closest they got to an equation that gives you prime numbers was Carmichaels pri... [ More ]

Reply #4

Dawn32 — Thu, 07 Jan 2010 00:39:08 GMT

Thank you so much for this I am going to study it further.

Reply #3

Dawn32 — Thu, 07 Jan 2010 00:24:58 GMT

Yes I do care because I had a dream (posted in Mystical) which seems to stump everyone cause no one can tell me what it means or even offer an opinion of what it means. The number 68 was in my dream and I can't figure out why so I was trying to do my own research on it.

Reply #2

Pinkpansies — Wed, 06 Jan 2010 23:07:02 GMT

When it doubt, ask Wikipedia.

Sixty-eight is a nontotient. It is also a Perrin number, preceded in the sequence by 29, 39, 51 (it is the sum of the first two mentioned). It is also a Happy number.

A Perrin number is generated by the sequence:

(3-X2)/(1-X2-X3)

so if x=0 then you have 3, x=1 you have 0, etc.

This is how the numbers work out:

3, 0, 2, 3, 2, 5, 5, 7, 10, 12, 17, 22, 29, 39, 51, 68, 90, 119, 158, 209, 277, 367, 486, 644, 853, 1130, 1497, 1983, 2627, 3480, 4610,... [ More ]

Reply #1

tiggs95 — Wed, 06 Jan 2010 22:12:23 GMT

Do you really care what this means?..I must be the dumbest boob around cause I have no idea what it means..You would need a dictionary to figure out what some of the wortds mean..Good luck and hope you figure it out but don't know why?..Hope you bust a big one someday..

Anyone here a mathematician? Question on the number 68

Dawn32 — Wed, 06 Jan 2010 22:05:14 GMT

68 is a member of an iteratively-defined sequence called the Perrin(or Ondrej Such) numbers. It is defined in a similar way to theFibonacci and Pell numbers: A0 = 0; A1= 2; A2 = 3; AN+1 = AN-1 + AN-2. Thesequence starts: 3, 0, 2, 3, 2, 5, 5, 7,10, 12, 17, 22, 29,39, 51, 68, 90, 119, 158,209, 277, 367, ... (Sloane's A001608; myMCS197664). Because it has the same iteration rule asthe Padovan numbers, both have the same asymtotic ratio,about 1.3247.

In trying to learn about the properties... [ More ]