A182584 Central terms of the triangle A182579.

1, 1, 4, 5, 20, 27, 112, 156, 660, 935, 4004, 5733, 24752, 35700, 155040, 224808, 980628, 1427679, 6249100, 9126975, 40060020, 58659315, 258048960, 378658800, 1668903600, 2453288292, 10829900592, 15944020316, 70480305440, 103897691640, 459823234112

Offset

0,3

Comments

a(n) = A182579(2*n,n);

a(2*n+1) = A052227(n).

Links

Reinhard Zumkeller, Table of n, a(n) for n = 0..1000

Prog

(Haskell)
a182584 n = a182579 (2*n) n

Crossrefs

Sequence in context: A047175 A133632 A163141 * A358581 A240860 A059182

Adjacent sequences: A182581 A182582 A182583 * A182585 A182586 A182587

Keyword

nonn

Author

Reinhard Zumkeller, May 06 2012

Status

approved