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%I #12 Jul 17 2021 23:36:07
%S 25,36,52,92,124,306,361,630,656,1648,1780,2508,3300,3540,5728,6260,
%T 6450,7500,10820,12656,14076,14132,18836,20960,23456,24272,35280,43136
%N Numbers k such that A019320(k) is in A217465.
%o (PARI) is_A297415(n) = my(m=polcyclo(n, 2)); (m>1) && Mod(2, m*(m+1))^m==2 && !ispseudoprime(m);
%Y Cf. A019320, A217465, A297412.
%Y Set difference of A297414 and ({1} U A072226).
%K nonn,more
%O 1,1
%A _Max Alekseyev_, Dec 29 2017
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