A243887 (p^2 - 3)/2 for odd primes p.

3, 11, 23, 59, 83, 143, 179, 263, 419, 479, 683, 839, 923, 1103, 1403, 1739, 1859, 2243, 2519, 2663, 3119, 3443, 3959, 4703, 5099, 5303, 5723, 5939, 6383, 8063, 8579, 9383, 9659, 11099, 11399, 12323, 13283, 13943, 14963, 16019, 16379, 18239, 18623, 19403, 19799

Offset

1,1

Links

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

Formula

a(n) = A216244(n) - 1. [Robert Israel, Jun 15 2014]

Mathematica

Table[(Prime[n]^2 - 3)/2, {n, 2, 100}]

Prog

(Magma) [(p^2-3)/2: p in PrimesInInterval(3, 300)];

Crossrefs

Cf. A065091, A165635, A216244.

Sequence in context: A128928 A289888 A145477 * A098828 A165635 A337476

Adjacent sequences: A243884 A243885 A243886 * A243888 A243889 A243890

Keyword

nonn,easy

Author

Vincenzo Librandi, Jun 15 2014

Status

approved