A112891 a(n) is the least positive integer in base 10 containing n ones that is divisible by n.

1, 110, 111, 11112, 111110, 1111110, 11101111, 111111112, 111111111, 11111111110, 111111111111, 1111111111116, 11111111111113, 111111111111112, 1111111111111110, 111111111111110112, 111101111111111111

Offset

1,2

Links

Table of n, a(n) for n=1..17.

Formula

a(n) = n*A112892(n).

Example

a(4) = 11112 because 11112 contains 4 ones and is divisible by 4.

Crossrefs

Cf. A112889-A112898, A112900-A112905, A112907-A112910.

Sequence in context: A282657 A287138 A288769 * A182621 A267254 A036230

Adjacent sequences: A112888 A112889 A112890 * A112892 A112893 A112894

Keyword

base,nonn

Author

Ray G. Opao, Oct 05 2005

Extensions

Extended by Ray Chandler, Oct 09 2005

Status

approved