id:A106066 - OEIS Search Results

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Primes p such that 1*p+20 and 20*p+1 are primes.

+0
3

3, 23, 41, 47, 53, 59, 107, 131, 137, 173, 179, 191, 251, 263, 293, 311, 443, 467, 503, 599, 641, 971, 977, 1013, 1049, 1151, 1277, 1301, 1307 (list; graph; listen)

	OFFSET	`1,1`
	MATHEMATICA	`Select[Prime[Range[220]], PrimeQ[20#+1]&&PrimeQ[1#+20]&]`
	CROSSREFS	`Sequence in context: A006598 A106892 A116893 this_sequence A167216 A117738 A014582` `Adjacent sequences: A106063 A106064 A106065 this_sequence A106067 A106068 A106069`
	KEYWORD	`nonn`
	AUTHOR	`Zak Seidov (zakseidov(AT)yahoo.com), May 07 2005`

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.

AT&T Labs Research