A209544 Primes not expressed in form n<+>2, where operation <+> defined in A206853.

3, 17, 41, 73, 89, 97, 113, 137, 193, 233, 241, 257, 281, 313, 337, 353, 401, 409, 433, 449, 457, 521, 569, 577, 593, 601, 617, 641, 673, 761, 769, 809, 857, 881, 929, 937, 953, 977, 1009, 1033, 1049, 1097, 1129, 1153, 1193, 1201, 1217, 1249, 1289, 1297, 1321

Offset

1,1

Comments

Trivially every odd prime is expressed in form n<+>1 (cf. A208982).

Are these related to A141174, A045390 or A007519? - R. J. Mathar, Mar 13 2012

Links

Table of n, a(n) for n=1..51.

Formula

For n>=2, a(n) = A007519(n-1). - Vladimir Shevelev, Apr 18 2012

Crossrefs

Cf. A205509, A205510, A205511, A205302, A205649, A205533, A122565, A206852, A206853, A206960, A007519, A209554, A182187.

Sequence in context: A340463 A107147 A049078 * A146821 A181981 A089637

Adjacent sequences: A209541 A209542 A209543 * A209545 A209546 A209547

Keyword

nonn,base

Author

Vladimir Shevelev and Peter J. C. Moses, Mar 10 2012

Status

approved