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A175281 Numbers n with property that 6n+1 is term in A005471. 4

%I

%S 1,2,3,6,13,16,23,27,52,58,101,118,146,156,177,188,248,261,331,426,

%T 443,552,591,716,853,926,1248,1336,1427,1521,1553,1651,1752,1963,2148,

%U 2502,2543,2753,2883,3016,3061,3152,3338,3433,3481,4083,4241,4511,4566,4846

%N Numbers n with property that 6n+1 is term in A005471.

%e n=1: 6n+1=7=A005471(1), n=2: 6n+1=13=A005471(2), n=3: 6n+1=19=A005471(3).

%Y Cf. A005471 Primes of form n^2 + 3*n + 9.

%K nonn

%O 1,2

%A _Zak Seidov_, Mar 20 2010

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Last modified August 10 04:38 EDT 2020. Contains 336368 sequences. (Running on oeis4.)