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%I #9 Nov 09 2015 16:15:01
%S 0,21,24,8504,9860,28022,28171,106666,106957,1301664,1310231,2736338,
%T 2740428,8770047,8829795,333863896,333959486
%N Positions of squares in A259934.
%C Numbers n for which A259934(n) is a perfect square. Indexing begins from zero, because a(0) = 0 is a special case.
%C Terms were computed from the data file of A259934 provided by _Max Alekseyev_, which contained terms up to A259934(397420670) = 9999999974.
%F a(n) = A262694(A262514(n)).
%o (Scheme) (define (A263276 n) (A262694 (A262514 n)))
%Y Cf. A259934, A262514, A262694.
%Y Cf. A263277 (first differences).
%K nonn,more
%O 0,2
%A _Antti Karttunen_, Nov 08 2015
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