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%I #5 Mar 14 2020 09:20:35
%S 32,8192,8589934592,2305843009213693952,
%T 191561942608236107294793378393788647952342390272950272
%N Bisection of ultraperfect numbers A139306.
%H Jinyuan Wang, <a href="/A139568/b139568.txt">Table of n, a(n) for n = 1..7</a>
%F a(n) = A139306(2*n). - _Jinyuan Wang_, Mar 14 2020
%Y Cf. A099057, A099058, A139306, A139563, A139564, A139567.
%K nonn
%O 1,1
%A _Omar E. Pol_, May 08 2008
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