%I #2 Mar 30 2012 17:26:31
%S 0,42,53,117,154,2377,3245,3771,6381,9688,10406,13879,13944,14056,
%T 15026,18884,26521,29565,30735,36362,39310,43337,48808,54415,58308,
%U 62228,63378,69111,77403,81750,86021,93545,94388,103961,119754,152555,162698
%N Integers n such that 17+30*n are terms in A172456.
%F a(n)=(A172456(n)-17)/30.
%Y Cf. A172456.
%K nonn
%O 1,2
%A _Zak Seidov_, Feb 07 2010
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