A030985 3-automorphic numbers ending in 2: final digits of 3*n^2 agree with n.

2, 92, 792, 9792, 69792, 369792, 2369792, 62369792, 262369792, 7262369792, 27262369792, 27262369792, 27262369792, 80027262369792, 580027262369792, 4580027262369792, 14580027262369792, 914580027262369792

Offset

1,1

Comments

a(n) is the unique positive integer less than 10^n such that a(n) is divisible by 2^n and 3*a(n) - 1 is divisible by 5^n. - Eric M. Schmidt, Aug 18 2012

Links

Eric M. Schmidt, Table of n, a(n) for n = 1..1000

Index entries for sequences related to automorphic numbers

Index entries for sequences related to final digits of numbers

Eric Weisstein's World of Mathematics, Automorphic Number

Prog

(Sage) [crt(0, inverse_mod(3, 5^n), 2^n, 5^n) for n in range(1, 1001)] # Eric M. Schmidt, Aug 18 2012

Crossrefs

Sequence in context: A266653 A116162 A116293 * A053313 A226404 A166825

Adjacent sequences: A030982 A030983 A030984 * A030986 A030987 A030988

Keyword

nonn,base

Author

Eric W. Weisstein

Status

approved