A228296 Smallest of 101 consecutive primes whose sum is not a prime.

2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 97, 101, 103, 107, 109, 113, 127, 131, 137, 149, 151, 157, 163, 167, 173, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 283, 293, 307, 311, 313, 317, 331

Offset

1,1

Links

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

Mathematica

Transpose[Select[Partition[Prime[Range[180]], 101, 1], ! PrimeQ[Total[#]] &]][[1]]
Prime[Select[Range[80], ! PrimeQ[Sum[Prime[# + i], {i, 0, 100}]] &]] (* Bruno Berselli, Aug 22 2013 *)

Prog

(Magma) [NthPrime(n): n in [1..120] |not IsPrime(&+[NthPrime(n+s): s in [0..100]])];

Crossrefs

Cf. A226380, A000040.

Sequence in context: A124590 A049573 A038616 * A176165 A196230 A233360

Adjacent sequences: A228293 A228294 A228295 * A228297 A228298 A228299

Keyword

nonn,less

Author

Vincenzo Librandi, Aug 20 2013

Status

approved