id:A093655 - OEIS Search Results

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First column of lower triangular matrix A093654.

+0
5

1, 1, 1, 2, 1, 2, 2, 7, 1, 2, 2, 7, 2, 7, 7, 41, 1, 2, 2, 7, 2, 7, 7, 41, 2, 7, 7, 41, 7, 41, 41, 397, 1, 2, 2, 7, 2, 7, 7, 41, 2, 7, 7, 41, 7, 41, 41, 397, 2, 7, 7, 41, 7, 41, 41, 397, 7, 41, 41, 397, 41, 397, 397, 6377 (list; graph; listen)

	OFFSET	`1,4`
	COMMENT	`Related to the number of tournament sequences (A008934).` `a(n) equals the number of tournament sequences (A008934) of length A000120(n-1), which is the number of 1's in the binary expansion of n-1.`
	FORMULA	`a(2^n) = A008934(n) for n>=0.` `a(n) = A008934(A000120(n-1)) for n>=1.`
	CROSSREFS	`Cf. A008934, A093655.` `Cf. A000120.` `Sequence in context: A081727 A000020 A077014 this_sequence A023140 A145859 A145863` `Adjacent sequences: A093652 A093653 A093654 this_sequence A093656 A093657 A093658`
	KEYWORD	`nonn`
	AUTHOR	`Paul D. Hanna (pauldhanna(AT)juno.com), Apr 08 2004`

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.

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