id:A129517 - OEIS Search Results

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Odd primes p such that p divides (p-1)!!-1.

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11, 19, 23, 31, 43, 67, 71, 131, 151, 163, 167, 179, 223, 227, 239, 271, 311, 347, 359, 419, 439, 443, 463, 487, 491, 523, 563, 571, 619, 647, 683, 691, 719, 739, 751, 787, 911, 919, 947, 967, 983, 1019, 1031, 1039, 1051, 1063, 1091, 1103, 1123, 1187, 1223 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`All terms are prime of the form 4n+3 belonging to A002145(n). A002145(n) is a union of a(n) and A129518(n) = numbers n>2 such that n divides (n-2)!!-1 and (n-3)!!-1.`
	CROSSREFS	`Cf. A006882 = Double factorials n!!. Cf. A002145 = Primes of form 4n+3. Cf. A129518 = numbers n>2 such that n divides (n-2)!!-1 and (n-3)!!-1. Cf. A129516 = numbers n such that n divides (n-1)!!-1.` `Sequence in context: A121658 A161504 A165947 this_sequence A161601 A031406 A105908` `Adjacent sequences: A129514 A129515 A129516 this_sequence A129518 A129519 A129520`
	KEYWORD	`nonn`
	AUTHOR	`Alexander Adamchuk (alex(AT)kolmogorov.com), Apr 18 2007`

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Last modified December 20 00:58 EST 2009. Contains 171054 sequences.

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