A051345 Odd numbers not of the form 3 + twin prime + twin prime.

1, 3, 5, 7, 97, 99, 101, 403, 405, 407, 517, 519, 521, 787, 789, 791, 907, 909, 911, 1117, 1119, 1121, 1147, 1149, 1151, 1267, 1269, 1271, 1357, 1359, 1361, 3247, 3249, 3251, 4207, 4209, 4211

Offset

1,2

Links

Table of n, a(n) for n=1..37.

Index entries for sequences related to Goldbach conjecture

Mathematica

tps=Flatten[Select[Partition[Prime[Range[2000]], 2, 1], Last[#]-First[#]==2&]]; Complement[Range[1, Last[tps], 2], Union[Total[#]+3&/@Tuples[tps, {2}]]]  (* Harvey P. Dale, Apr 01 2011 *)

Crossrefs

Essentially A007534 + 3.

Sequence in context: A201270 A160360 A082697 * A242387 A104388 A110337

Adjacent sequences: A051342 A051343 A051344 * A051346 A051347 A051348

Keyword

nonn,nice

Author

David W. Wilson

Extensions

No others below 100000. Conjectured to be complete.

Status

approved