a(n) and floor(a(n)/2) are both squares; i.e., squares which remain squares when written in base 2 and last digit is removed.

A055792

a(n) and floor(a(n)/2) are both squares; i.e., squares which remain squares when written in base 2 and last digit is removed.

Terms

    a(0) =0a(1) =1a(2) =9a(3) =289a(4) =9801a(5) =332929a(6) =11309769a(7) =384199201a(8) =13051463049a(9) =443365544449

External references