id:A109273 - OEIS Search Results

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Numbers n such that n+1 is the smallest prime factor of n^3+3^n.

+0
3

1, 4, 10, 16, 22, 28, 40, 52, 58, 70, 88, 100, 112, 130, 136, 148, 196, 232, 238, 250, 256, 280, 310, 316, 352, 382, 400, 418, 430, 442, 478, 490, 556, 562, 592, 598, 616, 640, 682, 742, 772, 796, 808, 820, 862, 880, 928, 970, 976, 1030, 1048, 1060, 1096, 1102 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`Except for the first term, 2n+1 is composite.`
	CROSSREFS	`Sequence in context: A043385 A140493 A016957 this_sequence A049881 A067274 A054901` `Adjacent sequences: A109270 A109271 A109272 this_sequence A109274 A109275 A109276`
	KEYWORD	`nonn`
	AUTHOR	`Zak Seidov (zakseidov(AT)yahoo.com) & Max Alekseyev (maxal(AT)cs.ucsd.edu), Jun 25 2005`

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Last modified September 6 09:40 EDT 2008. Contains 143480 sequences.

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