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A029698 Number of words of length 2n in the 10 transpositions of S[5] equivalent to the identity. +0
1
10, 340, 20860, 1770940, 169271260, 16731772540, 1668294277660, 166707356798140, 16667683919380060, 1666692097982207740, 166667302449546018460, 16666682561238613761340 (list; graph; listen)
OFFSET

1,1
FORMULA

(25*4^n+16*25^n +100^n)/60.

CROSSREFS

Sequence in context: A113082 A046747 A006426 this_sequence A060704 A132093 A016101

Adjacent sequences: A029695 A029696 A029697 this_sequence A029699 A029700 A029701

KEYWORD

nonn

AUTHOR

Paolo Dominici (pl.dm(AT)libero.it)

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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