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A110130 Central coefficients of a scaled Legendre triangle. 0
1, 0, 2, 4, 22, 136, 504, 5136, 16966, 240368, 752800, 13660480, 41492284, 918172848, 2734083968, 71399743744, 209681631814, 6312095369056, 18348172005888, 625558677709824, 1804161160185748, 68713071248064560 (list; graph; refs; listen; history; internal format)
OFFSET

0,3

COMMENTS

Central coefficients of triangle A110124.

FORMULA

a(n)=2^ceiling(n/2)*LegendreP(ceiling(n/2), floor(n/2));

CROSSREFS

Sequence in context: A047035 A080042 A165588 * A019025 A192332 A018279

Adjacent sequences:  A110127 A110128 A110129 * A110131 A110132 A110133

KEYWORD

easy,nonn

AUTHOR

Paul Barry (pbarry(AT)wit.ie), Jul 13 2005

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Last modified February 16 11:25 EST 2012. Contains 205907 sequences.