A138691 Numbers of the form 68+p^2 (where p is a prime).

72, 77, 93, 117, 189, 237, 357, 429, 597, 909, 1029, 1437, 1749, 1917, 2277, 2877, 3549, 3789, 4557, 5109, 5397, 6309, 6957, 7989, 9477, 10269, 10677, 11517, 11949, 12837, 16197, 17229, 18837, 19389, 22269, 22869, 24717, 26637, 27957, 29997

Offset: 1

Author

Artur Jasinski, Mar 26 2008

Keywords

• nonn

Comments

68 + p^2 is divisible by 3 for any prime p > 3. - M. F. Hasler

Links

• Harvey P. Dale, Table of n, a(n) for n = 1..1000

Crossrefs

Cf. A138479, A138685, A138686, A138691, A138692, A138693, A138694, A007528, A138696, A138697, A138698, A138699, A138700.

Programs

Mathematica

Table[2*34 + Prime[p + 1]^2, {p, 0, 100}]
Prime[Range[50]]^2+68 (* Harvey P. Dale, Oct 19 2011 *)

PARI

forprime(p=1, 1e2, print1(68+p^2, ", ")) \\ Felix Fröhlich, Jul 07 2014