A216159 10's-complement of A216161.

7, 7, 7, 5, 6, 4, 2, 6, 8, 2, 9, 5, 5, 8, 7, 3, 6, 5, 8, 2, 2, 8, 9, 0, 3, 1, 5, 6, 3, 8, 1, 6, 8, 5, 3, 4, 0, 8, 0, 1, 7, 7, 8, 5, 6, 4, 4, 4, 6, 6, 0, 0, 9, 0, 8, 5, 1, 8, 4, 1, 7, 3, 0, 3, 2, 3, 3, 6, 3, 0, 0, 7, 0, 7, 5, 7, 5, 0, 6, 6, 8, 7, 1, 5, 0, 3, 2, 4, 4, 8, 4, 1, 0, 3, 2, 8, 8, 7, 3, 3, 9, 0, 5, 5, 7, 0

Offset

1,1

Comments

11^50 ends in 23001

11^500 ends in 2230001

11^5000 ends in 422300001

11^50000 ends in 34223000001

The last digits before the zeros tend to converge.

Links

Table of n, a(n) for n=1..106.

Formula

a(n) = 10 - [{11^(5*10^n) mod 10^(2n+2) - 1}/(10^(2n+1)) mod 10].

Crossrefs

Cf. A216161, A007185, A016090, A091663, A018248, A091664, A018247.

Sequence in context: A139824 A019799 A341908 * A276615 A103983 A232127

Adjacent sequences: A216156 A216157 A216158 * A216160 A216161 A216162

Keyword

nonn

Author

V. Raman, Sep 02 2012

Status

approved