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A110579
{a(3,n)}, where a(m,n) is as defined in sequence A110576.
5
1, 4, 11, 29, 87, 317, 1367, 6644, 35257, 201152, 1224225, 7906794, 53961576, 387673853, 2921972174, 23036161619, 189459483913, 1621711095618, 14416893342727, 132860397599808, 1267097654903284
OFFSET
0,2
LINKS
MATHEMATICA
a[0, 0] := 1; a[0, 1] := 1; a[0, n_] := a[0, n] = Sum[Binomial[2*n - k - 3, n - 2]*a[0, k], {k, 0, n - 1}]; a[1, 0] := 1; a[1, n_] := a[1, n] = a[1, n - 1] + a[0, n]; a[2, 0] := 1; a[2, n_] := a[2, n] = a[2, n - 1] + a[1, n]; a[3, 0] := 1; a[3, n_] := a[3, n] = a[3, n - 1] + a[2, n];
Table[a[3, n], {n, 0, 50}] (* G. C. Greubel, Sep 01 2017 *)
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Leroy Quet, Jul 28 2005
EXTENSIONS
More terms from Ryan Propper, Sep 25 2005
STATUS
approved