A165723 The (d+1)th digit after the decimal point in the decimal representation of 1/n, where d is the number of digits of n.

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

Offset

1,3

Links

K. Stern, Table of n, a(n) for n = 1..500

Example

1/1 = 1.000 so a(1) = 0;
1/4 = 0.250 so a(4) = 5;
1/14 = 0.0714... so a(14) = 1;
1/114 = 0.00877... so a(114) = 7.

Maple

A055642 := proc(n) max(1, ilog10(n)+1) ; end: A165723 := proc(n) local d; d := A055642(n) ; floor(10^(d+1)/n) mod 10 ; end: seq(A165723(n), n=1..100) ; R. J. Mathar, Sep 26 2009

Crossrefs

Sequence in context: A144541 A100609 A104866 * A257407 A224932 A094771

Adjacent sequences: A165720 A165721 A165722 * A165724 A165725 A165726

Keyword

nonn,base,easy

Author

Kyle Stern, Sep 24 2009

Extensions

More terms from R. J. Mathar, Sep 26 2009

Status

approved