

A093013


Numbers n such that 10*n3 and 10*n+3 are both primes.


4



1, 2, 4, 5, 7, 10, 11, 16, 17, 23, 26, 28, 31, 35, 37, 46, 56, 59, 61, 65, 68, 73, 86, 88, 95, 98, 109, 110, 112, 119, 122, 128, 130, 137, 143, 145, 149, 161, 166, 175, 178, 187, 191, 199, 200, 214, 221, 224, 227, 229, 238, 242, 247, 266, 268, 269, 271, 280, 284, 290
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OFFSET

1,2


COMMENTS



LINKS



FORMULA



MATHEMATICA

Select[Range[600], PrimeQ[10*#3] && PrimeQ[10*#+3] &] (* G. C. Greubel, Feb 05 2019 *)


PROG

(PARI) for(n=1, 290, if(isprime(10*n3)&&isprime(10*n+3), print1(n, ", "))) \\ Jinyuan Wang, Feb 06 2019


CROSSREFS



KEYWORD

nonn


AUTHOR



STATUS

approved



