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%I #13 Oct 07 2017 21:55:09
%S 1,3,5,7,11,13,15,19,27,29,31,37,53,59,61,63,67,83,95,101,107,127,131,
%T 139,149,163,173,179,181,197,211,227,255,269,277,293,305,317,347,349,
%U 373,379,389,419,421,443,461,467,491,509,511,519,523,541,547,557,563,587,613,619,653,659,661,677,701,709,757,773
%N Odd numbers k such that A292270((k-1)/2) is a square.
%H Antti Karttunen, <a href="/A292939/b292939.txt">Table of n, a(n) for n = 1..1001</a>
%F a(n) = 1 + 2*A292938(n).
%Y Union of A000225 and A292940.
%Y Cf. A001122, A292379 (subsequences).
%Y Cf. also A292270, A292938.
%K nonn
%O 1,2
%A _Antti Karttunen_ and _Vladimir Shevelev_, Oct 06 2017
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