id:A151774 - OEIS Search Results

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Characteristic function of numbers with binary weight 2 (A018900).

+0
4

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

	OFFSET	`0,1`
	COMMENT	`a(A018900(n)) = 1; a(A161989(n)) = 0. [From Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jun 24 2009]`
	LINKS	`R. Zumkeller, Table of n, a(n) for n = 0..10000 [From Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jun 24 2009]` `Index entries for characteristic functions [From Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jun 24 2009]`
	FORMULA	`Let Theta = Sum_{k >= 0} x^(2^k). G.f. is (x + Theta^2 - Theta)/2 (cf. A151758).`
	CROSSREFS	`Cf, A000120, A018900, A151758.` `Sequence in context: A099618 A106002 A066247 this_sequence A095792 A093385 A135136` `Adjacent sequences: A151771 A151772 A151773 this_sequence A151775 A151776 A151777`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Jun 23 2009`

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Last modified November 23 10:40 EST 2009. Contains 167421 sequences.

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