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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 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

G. C. Greubel, Table of n, a(n) for n = 0..570

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

Cf. A110576, A110577, A110578, A110580.

Sequence in context: A098149 A002878 A124861 * A024829 A296290 A224215

Adjacent sequences:  A110576 A110577 A110578 * A110580 A110581 A110582

KEYWORD

easy,nonn

AUTHOR

Leroy Quet, Jul 28 2005

EXTENSIONS

More terms from Ryan Propper, Sep 25 2005

STATUS

approved

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Last modified April 6 16:14 EDT 2020. Contains 333276 sequences. (Running on oeis4.)