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A134767 Indices where primes occur in variant of permutational numbers A134750. 2

%I #2 Mar 31 2012 10:22:05

%S 3,14,17,19,20,25,28,33,38,52,57,63,68,89,91,100,111,113,115,119,123,

%T 124,125,127,130,131,133,141,142,143,144,145,146,151,158,164,172,174,

%U 179,185,198,209,212,256,258,275,294,299,307,309,323,326,331,332,337

%N Indices where primes occur in variant of permutational numbers A134750.

%C For primes in A134750 see A134766

%t k = {}; a = {}; b = {}; Do[AppendTo[b, n]; w = Permutations[b]; Do[j = FromDigits[1 + w[[m]], n + 1]; AppendTo[a, j], {m, 1, Length[w]}], {n, 0, 6}]; Do[If[PrimeQ[a[[n]]], AppendTo[k, n]], {n, 1, Length[a]}]; k

%Y Cf. A134640, A134641, A134750, A134766.

%K nonn

%O 1,1

%A _Artur Jasinski_, Nov 10 2007

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Last modified April 25 09:15 EDT 2024. Contains 371967 sequences. (Running on oeis4.)