cp's OEIS Frontend

A178342 Smallest prime p such that decimals digits 1, ..., k (k = 1, ..., 9) and 0 appear in any order in 3 * p.

%I A178342 #3 Jun 01 2011 00:36:39
%S A178342 5,7,41,14071,4751,41521,4114189,41115229,411452263,3411452263
%N A178342 Smallest prime p such that decimals digits 1, ..., k (k = 1, ..., 9) and 0 appear in any order in 3 * p.
%C A178342 See A178341
%C A178342 Semiprime N = 3 * p, p a prime, sod(N) a multiple of 3
%e A178342 5 * 3 = 15, 5 = prime(3)
%e A178342 7 * 3 = 21, 7 = prime(4)
%e A178342 41 * 3 = 123, 41 = prime(13)
%e A178342 14071 * 3 = 42213, 14071 = prime(1659)
%e A178342 4751 * 3 = 14253, 4751 = prime(640)
%e A178342 41521 * 3 = 124563, 41521 = prime(4343)
%e A178342 4114189 * 3 = 12342567, 4114189 = prime(290704)
%e A178342 41115229 * 3 = 123345687, 41115229 = prime(2497340)
%e A178342 411452263 * 3 = 1234356789, 411452263 = prime(21913969)
%e A178342 3411452263 * 3 = 10234356789, 3411452263 = prime(163246897)
%Y A178342 Cf. A178303, A178341.
%K A178342 base,easy,fini,full,nonn
%O A178342 1,1
%A A178342 Eva-Maria Zschorn (e-m.zschorn(AT)zaschendorf.km3.de), May 25 2010