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%I #5 Mar 30 2012 17:23:05
%S 0,1,11,10001,1100011,1001000001,110100100011,100110010010001,
%T 11011111001000011,10100010100100000001,1110110011011111000011,
%U 1010110010010010110010001,111110110111010100110100011,101101110011001101010001000001
%N Numbers such that floor[a(n)^2/2] is a square (A001541), written in binary.
%Y See also A031149=sqrt(A023110) (base 10), A204502=sqrt(A204503) (base 9), A204514=sqrt(A055872) (base 8), A204516=sqrt(A055859) (base 7), A204518=sqrt(A055851) (base 6), A204520=sqrt(A055812) (base 5), A004275=sqrt(A055808) (base 4), A001075=sqrt(A055793) (base 3), A001541=sqrt(A055792) (base 2).
%K nonn,base
%O 1,3
%A _M. F. Hasler_, Jan 16 2012
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