id:A082311 - OEIS Search Results

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A Jacobsthal number sequence.

+0
8

1, 5, 43, 341, 2731, 21845, 174763, 1398101, 11184811, 89478485, 715827883, 5726623061, 45812984491, 366503875925, 2932031007403, 23456248059221, 187649984473771, 1501199875790165, 12009599006321323, 96076792050570581 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`a(n)=28^(n)/3+(-1)^n/3 a(n)=J(3n+1)=A001045(3n+1)` `First trisection of A024494. a(n)=8a(n-1)+3*(-1)^n. Sum of digits=A070366. - Paul Curtz (bpcrtz(AT)free.fr), Nov 20 2007`
	CROSSREFS	`Cf. A015565, A082365.` `Adjacent sequences: A082308 A082309 A082310 this_sequence A082312 A082313 A082314` `Sequence in context: A102851 A126963 A038140 this_sequence A112115 A083070 A092471`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Apr 09 2003`

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Last modified May 16 01:24 EDT 2008. Contains 139630 sequences.

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