id:A151758 - OEIS Search Results

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G.f.: Theta^2-Theta, where Theta = Sum_{k>=0} x^(2^k).

+0
6

0, -1, 0, 2, 0, 2, 2, 0, 0, 2, 2, 0, 2, 0, 0, 0, 0, 2, 2, 0, 2, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 0, 2, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 0, 2, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0 (list; graph; listen)

	OFFSET	`0,4`
	COMMENT	`If we omit the "-x" term and divide by 2, we get the characteristic function of the numbers with binary weight 2 (A018900, A151774).`
	CROSSREFS	`Cf. A000079, A073267, A151759, A151760, A151761, A151762, A018900, A151774.` `Sequence in context: A160210 A028928 A091379 this_sequence A164272 A164273 A106277` `Adjacent sequences: A151755 A151756 A151757 this_sequence A151759 A151760 A151761`
	KEYWORD	`sign`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Jun 22 2009`

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Last modified December 2 11:54 EST 2009. Contains 167921 sequences.

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