id:A056886 - OEIS Search Results

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Determinant of the n X n Hankel matrix whose entries are s_2 (i+j), 0 <= i, j < n, where s_2 is the sum of the base-2 bits.

+0
2

0, -1, 2, 5, -8, 3, 8, 141, -204, 11, -4, -11, -30, 99, 1836, 164997, -224532, 2403, -126, -39, 14, -5, -14, -267, -738, 351, -1134, -28431, -538002, 9537507, 891167508, 361226647845 (list; graph; listen)

	OFFSET	`1,3`
	EXAMPLE	`a(2) = -1 because det [[0,1],[1,1]] = -1`
	CROSSREFS	`Sequence in context: A062621 A020772 A131598 this_sequence A021391 A162611 A152248` `Adjacent sequences: A056883 A056884 A056885 this_sequence A056887 A056888 A056889`
	KEYWORD	`sign`
	AUTHOR	`Jeffrey Shallit (shallit(AT)graceland.uwaterloo.ca), Sep 04 2000`

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

AT&T Labs Research