id:A108200 - OEIS Search Results

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Least positive k such that k*n + 1 is a golden semiprime (A108540).

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5, 7, 62, 19, 1, 31, 2, 1254, 1692, 85, 912, 49, 20796, 1, 1234, 627, 50, 846, 4, 860, 28, 456, 4076, 418, 34, 10398, 564, 21, 91250, 617, 6, 47670, 304, 25, 6218, 423, 352018, 2, 6932, 430, 9348, 14, 400, 228, 2874, 2038, 324, 209, 12, 17, 5562, 5199, 25784, 282 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Conjecture: for every n > 4 there exists a number k < n^[n/2] such that k*n + 1 is a golden semiprime, where [] is the floor function.`
	EXAMPLE	`a(3) = 62 because 623+1 = 187 = 1117 and 11*phi-17 = 0.7983... < 1.`
	CROSSREFS	`Cf. A108540.` `Sequence in context: A123789 A082714 A106112 this_sequence A077780 A130189 A073624` `Adjacent sequences: A108197 A108198 A108199 this_sequence A108201 A108202 A108203`
	KEYWORD	`nonn`
	AUTHOR	`Jason Earls (zevi_35711(AT)yahoo.com), Jun 15 2005`

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Last modified December 10 00:48 EST 2009. Contains 170565 sequences.

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