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A324812 Numbers n such that A156552(n) is a square. 5


%S 1,2,5,10,11,17,23,31,41,47,50,55,59,67,73,83,97,98,103,109,127,137,

%T 149,154,157,167,179,187,191,197,211,227,233,241,257,266,269,277,283,

%U 307,313,331,347,353,367,374,379,389,391,401,419,431,439,449,461,467,487,499,509,523,547,563,571,587,598,599,605,607,617,631

%N Numbers n such that A156552(n) is a square.

%C Sequence A005940(1+(n^2)), n >= 0, sorted into ascending order.

%H Antti Karttunen, <a href="/A324812/b324812.txt">Table of n, a(n) for n = 1..10000</a>

%H <a href="/index/Bi#binary">Index entries for sequences related to binary expansion of n</a>

%H <a href="/index/Ch#char_fns">Index entries for characteristic functions</a>

%H <a href="/index/Pri#prime_indices">Index entries for sequences computed from indices in prime factorization</a>

%o (PARI) for(n=1,oo,if(A324822(n),print1(n,", ")));

%Y Cf. A000290, A005940, A156552, A324822 (characteristic function).

%Y Subsequence of A324813.

%K nonn

%O 1,2

%A _Antti Karttunen_, Mar 16 2019

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Last modified October 17 12:25 EDT 2019. Contains 328112 sequences. (Running on oeis4.)