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 A094179 Numbers congruent to 3 mod 4 which are divisible only by primes congruent to 3 mod 4. 3
 3, 7, 11, 19, 23, 27, 31, 43, 47, 59, 63, 67, 71, 79, 83, 99, 103, 107, 127, 131, 139, 147, 151, 163, 167, 171, 179, 191, 199, 207, 211, 223, 227, 231, 239, 243, 251, 263, 271, 279, 283, 307, 311, 331, 343, 347, 359, 363, 367, 379, 383, 387, 399, 419, 423, 431 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Harvey P. Dale, Table of n, a(n) for n = 1..1000 MATHEMATICA Select[Range[3, 431, 4], Union[Mod[Transpose[FactorInteger[#]][[1]], 4]] == {3}&] (* Harvey P. Dale, Apr 28 2012 *) PROG (PARI) {forstep(n=3, 440, 4, fac=factor(n); if(vecmin(vector(matsize(fac)[1], j, fac[j, 1])%4)==3, print1(n, ", ")))} CROSSREFS Cf. A094180. Sequence in context: A117510 A160227 A134442 * A085760 A179481 A131426 Adjacent sequences:  A094176 A094177 A094178 * A094180 A094181 A094182 KEYWORD nonn AUTHOR Lekraj Beedassy, May 06 2004 EXTENSIONS More terms and PARI code from Klaus Brockhaus, May 08 2004 STATUS approved

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Last modified September 20 14:44 EDT 2021. Contains 347586 sequences. (Running on oeis4.)