A176404 Semiprimes == -+1 (mod 8).

9, 15, 25, 33, 39, 49, 55, 57, 65, 87, 95, 111, 119, 121, 129, 143, 145, 159, 161, 169, 177, 183, 185, 201, 209, 215, 217, 247, 249, 265, 287, 289, 295, 303, 305, 319, 321, 327, 329, 335, 361, 377, 391, 393, 407, 415, 417, 447, 471, 473, 481, 489, 497, 505

Offset

1,1

Links

Daniel Starodubtsev, Table of n, a(n) for n = 1..10000

Maple

isA001358 := proc(n) numtheory[bigomega](n) = 2 ; end proc: for n from 1 to 600 do if n mod 8 in {1, 7} and isA001358(n) then printf("%d, ", n) ; end if; end do: # R. J. Mathar, Apr 20 2010

Crossrefs

Cf. A001358.

Sequence in context: A340120 A020154 A079290 * A227198 A279102 A319529

Adjacent sequences: A176401 A176402 A176403 * A176405 A176406 A176407

Keyword

nonn

Author

Juri-Stepan Gerasimov, Apr 16 2010

Extensions

Corrected (247, 287 inserted) by R. J. Mathar, Apr 20 2010

Status

approved