Numbers k that end with ( sum of digits of k )^2.

Terms

a(0) =0a(1) =1a(2) =81a(3) =3144a(4) =3256a(5) =6225a(6) =6484a(7) =6576a(8) =7121a(9) =7529a(10) =7676a(11) =9100a(12) =9324a(13) =9361a(14) =9729a(15) =9784a(16) =12144a(17) =12256a(18) =15225a(19) =15484a(20) =15576a(21) =16121a(22) =16529a(23) =16676a(24) =18100a(25) =18324a(26) =18361a(27) =18729a(28) =18784a(29) =21144