id:A115653 - OEIS Search Results

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Prime numbers which are the sum of distinct double factorials (A006882).

+0
4

2, 3, 5, 11, 13, 17, 19, 23, 29, 53, 59, 61, 67, 71, 73, 107, 109, 113, 131, 157, 163, 167, 173, 179, 181, 389, 397, 401, 409, 433, 443, 449, 457, 461, 491, 499, 503, 509, 541, 547, 557, 563, 947, 953, 971, 997, 1009, 1013, 1019, 1021, 1051, 1061, 1063 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Double factorials 0!! and 1!! are not considered distinct. Note that double factorial (n!!) is different from (n!)!.`
	EXAMPLE	`947 is prime and 947 = 9!! + 2!!.`
	CROSSREFS	`Cf. A006882, A115651, A115652, A115654.` `Sequence in context: A072538 A075237 A040062 this_sequence A042997 A126148 A038933` `Adjacent sequences: A115650 A115651 A115652 this_sequence A115654 A115655 A115656`
	KEYWORD	`nonn`
	AUTHOR	`Giovanni Resta (g.resta(AT)iit.cnr.it), Jan 28 2006`

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.

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