A155750 - OEIS

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A155750

First differences of A031215.

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; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	COMMENTS	`All terms are even. Do all even numbers (A005843) appear at least once?`
	LINKS	`Table of n, a(n) for n=1..77.`
	FORMULA	`a(n)= A001223(2n)+A001223(2n+1). - R. J. Mathar, Feb 27 2009` `a(n)= A031131(2n). - R. J. Mathar, Feb 27 2009`
	CROSSREFS	`Cf. A110854, A155067.` `Sequence in context: A183986 A160995 A215454 * A159475 A098350 A276269` `Adjacent sequences: A155747 A155748 A155749 * A155751 A155752 A155753`
	KEYWORD	`nonn,easy`
	AUTHOR	`Paul Curtz, Jan 26 2009`
	EXTENSIONS	`Edited and extended by R. J. Mathar, Feb 27 2009`
	STATUS	`approved`

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Last modified July 21 22:02 EDT 2019. Contains 325210 sequences. (Running on oeis4.)