1,1

7^500 ends in 64030001

7^5000 ends in 5640300001

7^50000 ends in 756403000001

7^500000 ends in 77564030000001

The last digits before the zeros tend to converge to the present sequence.

Table of n, a(n) for n=1..112.

Cf. A007185, A016090, A091663, A018248, A091664, A018247, A216104.

Sequence in context: A112256 A188720 A113792 * A197022 A112238 A111493

Adjacent sequences: A216102 A216103 A216104 * A216106 A216107 A216108

nonn,base

V. Raman, Sep 02 2012

approved