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**mathaholic****Member**- From: Juliania
- Registered: 2012-11-29
- Posts: 2,845
- Website

Sorry everyone, it has been a long time since my last post here.

So, it is the sum of two sexy primes (http://www.mathisfunforum.com/viewtopic.php?id=19312) and square numbers, and subtracted by the square root.

SP = Sexy prime

SQN = Square number

SQRT = Square root

Example :

(SP + SP) + (SQN + SQN) - (SQRT + SQRT)

(5 + 11) + (1 + 4) - (1 + 2)

(16 + 5) - 3

21 - 3

18

Go, continue the sequence!

"Double the fun, double the thrill, double the coolness" - Julianthewiki

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,228

Hi;

I am getting:

Of course that result can be rigorously obtained, but who cares?

Combinatorics is Algebra and Algebra is Combinatorics.

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**mathaholic****Member**- From: Juliania
- Registered: 2012-11-29
- Posts: 2,845
- Website

Okay. Continue the pattern?

"Double the fun, double the thrill, double the coolness" - Julianthewiki

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,228

(17+23) + (9 + 16)-(3+4) = 58

Of course that result can be rigorously obtained, but who cares?

Combinatorics is Algebra and Algebra is Combinatorics.

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