%I #4 Mar 30 2012 16:51:14
%S 115792089237316195423570985008687907853269984665640564039457584007913129639936,
%T 340282366920938463463374607431768211456,18446744073709551616,
%U 4294967296,65536,256,16,4,2,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1
%N Take square root of previous term.
%Y A001146 read backwards.
%K nonn
%O 1,1
%A b5142(AT)hotmail.com, Jan 23 2009
%E Edited with the addition of 4 leading terms. - _N. J. A. Sloane_, Jan 24 2009