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%I #14 Apr 21 2023 13:01:01
%S 2,4,16,64,409,655,262,107,115,309,811,850,343,265,520,737,223,129,
%T 953,142,239,173,140,215,224,201,427,268,260,256,373,870,647,206,407,
%U 311,637,218,462,629,149,610,157,622,101,849,158
%N First 3 digits of n-th even superperfect number A061652(n).
%C Also, first 3 digits of n-th superperfect number A019279(n), if there are no odd superperfect numbers.
%Y Cf. A019279, A061652, A138864, A138867, A138871, A138872, A138876.
%K nonn,base,more
%O 1,1
%A _Omar E. Pol_, Apr 02 2008
%E a(12)-a(31) from _R. J. Mathar_, Feb 05 2010
%E a(32)-a(41) from _Max Alekseyev_, Feb 11 2012
%E a(42)-a(47) from _Jinyuan Wang_, Mar 14 2020
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