id:A076162 - OEIS Search Results

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Primes p such that p + sum of squares of digits of p is also prime.

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11, 13, 17, 19, 31, 73, 97, 101, 103, 107, 109, 127, 251, 277, 347, 367, 431, 433, 457, 499, 613, 631, 677, 691, 701, 709, 727, 811, 877, 941, 947, 1009, 1063, 1069, 1087, 1171 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`13 is OK because 13+(1^2+3^2)=23 is a prime.`
	CROSSREFS	`Sequence in context: A062634 A106101 A032590 this_sequence A050674 A068155 A132244` `Adjacent sequences: A076159 A076160 A076161 this_sequence A076163 A076164 A076165`
	KEYWORD	`nonn,base`
	AUTHOR	`Zak Seidov (zakseidov(AT)yahoo.com), Nov 01 2002`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

AT&T Labs Research