id:A155750 - OEIS Search Results

Search: id:A155750

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First differences of A031215.

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4, 6, 6, 10, 8, 6, 10, 8, 10, 8, 10, 12, 6, 6, 18, 8, 12, 12, 10, 8, 12, 6, 24, 6, 10, 12, 12, 8, 10, 12, 18, 6, 20, 12, 10, 14, 10, 14, 12, 12, 12, 10, 14, 6, 16, 12, 12, 18, 20, 16, 12, 8, 16, 8, 12, 6, 22, 6, 12, 14, 10, 18, 18, 14, 10, 14, 12, 18, 22, 12, 6, 12, 18, 6, 18, 6, 24 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`All terms are even. Do all even numbers (A005843) appear at least once?`
	FORMULA	`a(n)= A001223(2n)+A001223(2n+1). - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Feb 27 2009` `a(n)= A031131(2n). - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Feb 27 2009`
	CROSSREFS	`Cf. A110854, A155067.` `Sequence in context: A094078 A016122 A160995 this_sequence A159475 A098350 A163173` `Adjacent sequences: A155747 A155748 A155749 this_sequence A155751 A155752 A155753`
	KEYWORD	`nonn,easy`
	AUTHOR	`Paul Curtz (bpcrtz(AT)free.fr), Jan 26 2009`
	EXTENSIONS	`Edited and extended by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Feb 27 2009`

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.

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