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

Author

Vincenzo Librandi, Aug 20 2013

Keywords

• nonn
• less

Links

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

Crossrefs

Cf. A226380, A000040.

Programs

Magma

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

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 *)