A204574 Numbers such that floor[a(n)^2/2] is a square (A001541), written in binary.

0, 1, 11, 10001, 1100011, 1001000001, 110100100011, 100110010010001, 11011111001000011, 10100010100100000001, 1110110011011111000011, 1010110010010010110010001, 111110110111010100110100011, 101101110011001101010001000001

Offset

1,3

Links

Table of n, a(n) for n=1..14.

Crossrefs

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).

Sequence in context: A286019 A286647 A267035 * A267801 A050647 A267054

Adjacent sequences: A204571 A204572 A204573 * A204575 A204576 A204577

Keyword

nonn,base

Author

M. F. Hasler, Jan 16 2012

Status

approved