A204575 Squares such that [a(n)/2] is again a square (A055792), written in binary.

0, 1, 1001, 100100001, 10011001001001, 1010001010010000001, 101011001001001011001001, 10110111001100110101000100001, 1100001001111011011000010110001001, 110011100111010101001010101001000000001

Offset

1,3

Links

Table of n, a(n) for n=1..10.

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: A295462 A143906 A215593 * A139105 A262596 A213316

Adjacent sequences: A204572 A204573 A204574 * A204576 A204577 A204578

Keyword

nonn,base

Author

M. F. Hasler, Jan 16 2012

Status

approved