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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. 2
1, 2, 4, 10, 30, 110, 484, 2514, 15142, 104126, 806772, 6965090, 66374766, 692629618, 7860173564, 96428710490, 1272217776422, 17968286438066, 270569090589308, 4328163151246858, 73311692500174358, 1311041890981700358 (list; graph; refs; listen; history; text; internal format)
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

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Last modified March 26 05:43 EDT 2019. Contains 321481 sequences. (Running on oeis4.)