A085792 Triangle T(n, k) read by rows; given by [1, 0, 0, 0, 0, ...] DELTA [1, 1, 2, 5, 14, 42, 132, 429, 1430, ...] (A000108) where DELTA is Deléham's operator defined in A084938.

1, 1, 1, 1, 3, 2, 1, 5, 10, 6, 1, 7, 22, 46, 30, 1, 9, 38, 114, 422, 338, 1, 11, 58, 218, 1002, 12614, 11782, 1, 13, 82, 366, 1850, 26830, 1432478, 1407202, 1, 15, 110, 566, 3062, 43650, 2907546, 575135822, 572269334, 1, 17, 142, 826, 4750, 63946

Offset

0,5

Links

Alois P. Heinz, Rows n = 0..60, flattened

Example

1;
1,1;
1,3,2;
1,5,10,6;
1,7,22,46,30; ...

Crossrefs

Cf. A000012, A005408 (2nd column), A090288 (3rd column)

Sequence in context: A198876 A033878 A144061 * A108123 A105954 A144252

Adjacent sequences: A085789 A085790 A085791 * A085793 A085794 A085795

Keyword

nonn,tabl

Author

N. J. A. Sloane, Aug 16 2003

Status

approved