Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).
%I #8 Aug 22 2020 09:42:49
%S 1,16,1296,20736,160000,390625,3748096,8503056,16777216,62742241,
%T 193877776,429981696,623201296,855036081,1766100625,1871773696,
%U 1982119441,2562890625,2947295521
%N Ulam numbers that are fourth powers.
%e 1296 is in the sequence because it is a fourth power (6^4=1296) as well as an Ulam number (A002858).
%Y Intersection of A000583 and A002858.
%K nonn,more
%O 1,2
%A _Shyam Sunder Gupta_, Feb 20 2010
%E a(7)-a(19) from _Amiram Eldar_, Aug 22 2020