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A127135 Derived from the central terms (A127134) of triangle A127126; a(n) = A127126(2n,n)/(n+1). 1
1, 1, 6, 71, 1336, 35233, 1205605, 50905881, 2561801682, 149816972193, 9988787022964, 748036456826960, 62173668375158492, 5679720951862607185, 565666934647950245036, 61000592050512159666215 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..15.

FORMULA

a(n) = A127134(n)/(n+1).

CROSSREFS

Cf. A127126; A127134.

Sequence in context: A274644 A145089 A218676 * A187651 A005981 A024272

Adjacent sequences:  A127132 A127133 A127134 * A127136 A127137 A127138

KEYWORD

nonn

AUTHOR

Paul D. Hanna, Jan 05 2007

STATUS

approved

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Last modified January 28 00:32 EST 2020. Contains 331313 sequences. (Running on oeis4.)