

A176404


Semiprimes == +1 (mod 8).


1



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
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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

JuriStepan Gerasimov, Apr 16 2010


EXTENSIONS

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


STATUS

approved



