id:A075295 - OEIS Search Results

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Interprimes which are of the form s*prime, s=20.

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60, 260, 1220, 1660, 1780, 3620, 4460, 4660, 6260, 6340, 6980, 7580, 11140, 13180, 13460, 14020, 14540, 15380, 16220, 18220, 19060, 20180, 21940, 22180, 23260, 26420, 28780, 29620, 30980, 31660, 33860, 35540, 37220, 38620, 39860, 40580 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Interprimes of the form s*prime are in A075277-A075296 ( s = 2 - 21 ). Case s=1 is impossible.`
	EXAMPLE	`260 is an interprime and 260/20 = 13 is prime.`
	MATHEMATICA	`s=20; Select[Table[(Prime[n+1]+Prime[n])/2, {n, 2, 14000}], PrimeQ[ #/s]&]`
	CROSSREFS	`Cf. A075277-A075296.` `Sequence in context: A103741 A019285 A008428 this_sequence A134587 A100153 A059461` `Adjacent sequences: A075292 A075293 A075294 this_sequence A075296 A075297 A075298`
	KEYWORD	`easy,nonn`
	AUTHOR	`Zak Seidov (zakseidov(AT)yahoo.com), Sep 12 2002`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

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