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%I #4 Mar 30 2012 17:33:55
%S 0,255,72057594037927935,
%T 452312848583266388373324160190187140051835877600158453279131187530910662655
%N (2^(2p - 1)/32)-1, where p=A000668(n) is n-th Mersenne prime.
%C Next term is too large to list here.
%F a(n) = (2^(2*A000668(n)-1)/32)-1 = (A139294(n)/32)-1.
%Y Cf. A000668, A139286, A139294, A139295, A139296, A139297, A139298, A139299, A139300, A139301, A139302, A139303, A139304, A139306.
%K nonn
%O 1,2
%A _Omar E. Pol_, Apr 13 2008
%E Edited by _Max Alekseyev_, Apr 23 2010
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