id:A112992 - OEIS Search Results

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Numbers n such that ceiling(2^mod(2^n,n)/3) is odd.

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0, 1, 2, 4, 8, 16, 25, 32, 45, 55, 64, 91, 95, 99, 125, 128, 135, 143, 153, 155, 161, 175, 187, 225, 235, 245, 247, 256, 261, 273, 275, 279, 285, 289, 297, 319, 329, 333, 335, 355, 363 (list; graph; listen)

	OFFSET	`1,3`
	COMMENT	`Conjecture: the odd values of ceiling(2^mod(2^n,n)/3) are Jacobsthal numbers (and the even values are 1 plus a Jacobsthal number).`
	CROSSREFS	`Cf. A005578, A001045.` `Adjacent sequences: A112989 A112990 A112991 this_sequence A112993 A112994 A112995` `Sequence in context: A138278 A089827 A119311 this_sequence A070789 A060957 A018826`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Oct 08 2005`

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Last modified October 5 16:50 EDT 2008. Contains 144613 sequences.

AT&T Labs Research