id:A112991 - OEIS Search Results

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a(n)=ceiling(2^(mod(2^n,n)+1)/3)-ceiling(2^mod(2^n,n)/3).

+0
1

1, 0, 0, 1, 0, 1, 5, 1, 0, 85, 5, 1, 5, 1, 5, 85, 0, 1, 341, 1, 21845, 85, 5, 1, 21845, 43, 5, 22369621, 21845, 1, 5, 1, 0, 85, 5, 87381, 89478485, 1, 5, 85, 21845, 1, 1398101, 1, 21845, 43691, 5, 1, 21845, 357913941, 5592405, 85, 21845, 1, 89478485 (list; graph; listen)

	OFFSET	`0,7`
	COMMENT	`A sequence of Jacobsthal numbers.`
	CROSSREFS	`Cf. A001045.` `Sequence in context: A019107 A019183 A019156 this_sequence A137373 A086464 A162298` `Adjacent sequences: A112988 A112989 A112990 this_sequence A112992 A112993 A112994`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Oct 08 2005`

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Last modified December 1 19:22 EST 2009. Contains 167811 sequences.

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