A085843 Triangle T(n, k) read by rows; given by [1, 1, 1, 1, 1, ...] DELTA [1, 1, 2, 5, 14, 42, 132, 429, 1430, ...] (A000108) where DELTA is Deléham's operator defined in A084938.

1, 1, 1, 2, 4, 2, 5, 16, 17, 6, 14, 67, 122, 99, 30, 42, 294, 891, 1406, 1105, 338, 132, 1346, 7072, 22789, 40868, 35719, 11782, 429, 6397, 62683, 466417, 2021657, 4272586, 4067833, 1407202, 1430, 31405, 621689, 12035611, 138185753

Offset

0,4

Links

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

Example

1;
1,1;
2,4,2;
5,16,17,6;
14,67,122,99,30; ...

Crossrefs

Cf. A000108, A261048 (2nd column).

Sequence in context: A085880 A055883 A366588 * A198715 A216663 A198906

Adjacent sequences: A085840 A085841 A085842 * A085844 A085845 A085846

Keyword

nonn,tabl

Author

N. J. A. Sloane, Aug 16 2003

Status

approved