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A247488
Triangle read by rows: T(n,k) = abs(C(n-k, k)*hypergeom([k-n/2, k-n/2+1/2], [1], -4)).
1
1, 1, 1, 1, 5, 2, 5, 3, 1, 11, 20, 3, 41, 25, 6, 1, 29, 66, 50, 4, 125, 287, 75, 10, 1, 365, 232, 231, 100, 5, 131, 1125, 1148, 175, 15, 1, 1409, 3650, 1044, 616, 175, 6, 3301, 1441, 5625, 3444, 350, 21, 1, 155, 16908, 20075, 3480, 1386, 280, 7
OFFSET
0,5
EXAMPLE
1
1
1, 1
5, 2
5, 3, 1
11, 20, 3
41, 25, 6, 1
29, 66, 50, 4
125, 287, 75, 10, 1
365, 232, 231, 100, 5
131, 1125, 1148, 175, 15, 1
1409, 3650, 1044, 616, 175, 6
MAPLE
A247488 := (n, k) -> abs(binomial(n-k, k)*hypergeom([k-n/2, k-n/2+1/2], [1], -4)): seq(print(seq(round(evalf(A247488(n, k))), k=0..iquo(n, 2))), n =0..19);
CROSSREFS
Cf. A132885.
Sequence in context: A244892 A278066 A153107 * A199957 A020855 A007292
KEYWORD
nonn,tabf
AUTHOR
Peter Luschny, Sep 18 2014
STATUS
approved