A101901 Absolute row sums of triangular matrix A101897, in which column k equals column 0 of A101897^k and where the n-th row sums are zero for n>0.

1, 2, 4, 10, 30, 110, 484, 2514, 15142, 104126, 806772, 6965090, 66374766, 692629618, 7860173564, 96428710490, 1272217776422, 17968286438066, 270569090589308, 4328163151246858, 73311692500174358, 1311041890981700358

Offset

0,2

Links

Table of n, a(n) for n=0..21.

Crossrefs

Cf. A101897, A101898, A101899, A101900.

Sequence in context: A005193 A317280 A173940 * A124384 A280432 A001647

Adjacent sequences: A101898 A101899 A101900 * A101902 A101903 A101904

Keyword

nonn

Author

Paul D. Hanna, Dec 20 2004

Status

approved