8-automorphic numbers: final digits of 8*n^2 agree with n.

A030993

8-automorphic numbers: final digits of 8*n^2 agree with n.

Terms

    a(0) =2a(1) =72a(2) =672a(3) =8672a(4) =88672a(5) =388672a(6) =3388672a(7) =23388672a(8) =223388672a(9) =223388672a(10) =10223388672a(11) =510223388672

External references