id:A162586 - OEIS Search Results

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Integers n for which k = (7 * (256^n - 16^n) + n^2) / (n * (8n + 7)) is an integer

+0
2

2, 3, 5, 8, 9, 12, 15, 18, 20, 24, 27, 32, 45, 54, 60, 75, 78, 80, 90, 102, 110, 120, 128, 135, 162, 165, 170, 180, 192, 195, 200, 234, 243, 275, 288, 312, 330, 333, 360, 384, 408, 432, 440, 450, 465, 480, 495, 500, 513, 540, 612, 620, 624, 675, 684, 702, 729 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`8n + 7 is almost always prime. It is first composite for 8 * 372060 + 7 = 2976487 = 863 * 3449.`
	CROSSREFS	`Cf. A162587` `Cf. A158034, A158035` `Cf. A161896, A161897` `Sequence in context: A091513 A060138 A139487 this_sequence A035422 A058237 A009388` `Adjacent sequences: A162583 A162584 A162585 this_sequence A162587 A162588 A162589`
	KEYWORD	`easy,nonn`
	AUTHOR	`Reikku Kulon (reikku(AT)gmail.com), Jul 07 2009`

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Last modified December 5 20:25 EST 2009. Contains 170428 sequences.

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