A124866 Numbers of the form (p^2-q^2)/8, p, q odd primes, p>q.

2, 3, 5, 6, 9, 12, 14, 15, 18, 20, 21, 24, 30, 33, 35, 36, 39, 42, 44, 45, 51, 54, 60, 63, 65, 66, 69, 75, 81, 84, 90, 96, 99, 102, 104, 105, 111, 114, 117, 119, 120, 126, 129, 135, 141, 144, 150, 156, 159, 165, 168, 170, 171, 174, 180, 186, 189, 195, 201, 204, 207

Offset

1,1

Comments

Primes in a(n) are {2, 3, 5).

Links

Table of n, a(n) for n=1..61.

Mathematica

Take[Union[Flatten[Table[(Prime[p]^2 - Prime[q]^2)/8, {p, 2, 100}, {q, 2, p - 1}]]], 60] (* Alonso del Arte, Jul 14 2011 *)

Crossrefs

Cf. A124865 Numbers of the form p^2-q^2, p, q primes, p>q. Cf. A045636 Numbers of the form p^2+q^2, p, q primes.

Sequence in context: A074658 A186106 A329161 * A166247 A126785 A295586

Adjacent sequences: A124863 A124864 A124865 * A124867 A124868 A124869

Keyword

nonn

Author

Alexander Adamchuk, Nov 10 2006

Status

approved