A112709 Unsigned row sums of triangle A112707 (partial sums of Catalan numbers multiplied by powers of negative numbers).

1, 2, 2, 5, 14, 65, 376, 2613, 20761, 184756, 1816330, 19526217, 227588213, 2855033988, 38311846704, 547128228043, 8279365967056, 132259968568859, 2223048616707842, 39199883209336095, 723269314782624612

Offset

0,2

Links

Table of n, a(n) for n=0..20.

Formula

a(n) = Sum_{m=0..n} |A112707(n, m)|, for n >= 0.

Crossrefs

Cf. A112707, A112708 (signed row sums).

Sequence in context: A185966 A032097 A176856 * A291573 A208353 A208001

Adjacent sequences: A112706 A112707 A112708 * A112710 A112711 A112712

Keyword

nonn,easy

Author

Wolfdieter Lang, Oct 31 2005

Status

approved