

A030989


6automorphic numbers: final digits of 6n^2 agree with n.


1



6, 96, 896, 4896, 84896, 184896, 1184896, 31184896, 631184896, 3631184896, 13631184896, 13631184896, 13631184896, 90013631184896, 290013631184896, 7290013631184896, 57290013631184896, 957290013631184896
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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 6a(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
Eric Weisstein's World of Mathematics, Automorphic Number
Index entries for sequences related to automorphic numbers
Index entries for sequences related to final digits of numbers


PROG

(Sage) [crt(0, inverse_mod(6, 5^n), 2^n, 5^n) for n in range(1, 1001)] # Eric M. Schmidt, Aug 18 2012


CROSSREFS

Sequence in context: A115400 A279868 A055358 * A288845 A006044 A202078
Adjacent sequences: A030986 A030987 A030988 * A030990 A030991 A030992


KEYWORD

nonn,base


AUTHOR

Eric W. Weisstein


STATUS

approved



