A098237 Composite de Polignac numbers (A006285).

905, 959, 1199, 1207, 1211, 1243, 1271, 1477, 1529, 1541, 1589, 1649, 1719, 1807, 1829, 1859, 1927, 1969, 1985, 2171, 2231, 2263, 2279, 2429, 2465, 2669, 2983, 2993, 3029, 3149, 3215, 3239, 3341, 3353, 3431, 3505, 3665, 3817, 3845, 3985

Offset

1,1

Comments

Odd composites that are not the sum of a prime and a power of two.

Links

Reinhard Zumkeller, Table of n, a(n) for n = 1..10000

Prog

(Haskell)
a098237 n = a098237_list !! (n-1)
a098237_list = filter ((== 0) . a109925) a071904_list
-- Reinhard Zumkeller, May 27 2015

Crossrefs

Cf. A156695.

Cf. A006285, A109925, A065381.

Sequence in context: A252390 A218158 A249706 * A068856 A235949 A330284

Adjacent sequences: A098234 A098235 A098236 * A098238 A098239 A098240

Keyword

nonn

Author

Ralf Stephan, Aug 31 2004

Status

approved