Numbers k such that the deficiency of k^2 is itself a square.

Terms

a(0) =1a(1) =2a(2) =4a(3) =8a(4) =16a(5) =32a(6) =46a(7) =64a(8) =128a(9) =256a(10) =284a(11) =512a(12) =1024a(13) =1633a(14) =2048a(15) =4096a(16) =8192a(17) =16384a(18) =32768a(19) =65536a(20) =131072a(21) =149728a(22) =242656a(23) =260495a(24) =262144a(25) =298057a(26) =524288a(27) =1048576a(28) =1056752a(29) =2097152