A131871 A131766/18.

0, 0, 0, 0, 0, 1, 2, 3, 4, 10, 21, 32, 43, 54, 165, 276, 387, 498, 1109, 2220, 3331, 4442, 5553, 16664, 27775, 38886, 49997, 111108, 222219, 333330, 444441, 555552, 666663

Offset

0,7

Links

Table of n, a(n) for n=0..32.

Crossrefs

Sequence in context: A214283 A135056 A132135 * A132446 A332838 A123700

Adjacent sequences: A131868 A131869 A131870 * A131872 A131873 A131874

Keyword

nonn

Author

Paul Curtz, Oct 05 2007

Status

approved