A243587 Primes p such that sum of digits + 7 is prime.

13, 19, 31, 37, 73, 79, 97, 103, 109, 127, 163, 181, 211, 271, 277, 307, 349, 367, 433, 439, 457, 499, 523, 541, 547, 613, 619, 631, 673, 691, 709, 727, 769, 787, 811, 853, 859, 877, 907, 967, 1009, 1021, 1063, 1069, 1087, 1117, 1153, 1171, 1201, 1249, 1399

Offset

1,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Mathematica

Select[ Prime[Range[600]], PrimeQ[Plus@@IntegerDigits[#] + 7] &]

Prog

(Magma) [p: p in PrimesUpTo(1500) | IsPrime(q) where q is 7+(&+Intseq(p))];

Crossrefs

Cf. similar sequences listed in A243586.

Sequence in context: A158195 A040092 A079130 * A085413 A342943 A244311

Adjacent sequences: A243584 A243585 A243586 * A243588 A243589 A243590

Keyword

nonn,base,less

Author

Vincenzo Librandi, Jun 07 2014

Status

approved