A102812 - cp's OEIS frontend

A102812 a(0) = 1, a(n) = Sum_{k=1..n} A001263(n,k)*a(k-1) where A001263(n,k) are Narayana numbers.

n	a(n)
0	1
1	1
2	2
3	6
4	25
5	136
6	927
7	7690
8	75913
9	876026
10	11649009
11	176389234
12	3011057742
13	57453864447
14	1216376055329
15	28390144638804
16	726364328468535
17	20269424489285300
18	614148655197018345
19	20123000681064168210
20	710410428812211243412
21	26932611130467463342807

[1, 1, 2, 6, 25, 136, 927, 7690, 75913, 876026, 11649009, 176389234, 3011057742, 57453864447, 1216376055329, 28390144638804, 726364328468535, 20269424489285300, 614148655197018345, 20123000681064168210, 710410428812211243412, 26932611130467463342807]

cp's OEIS Frontend

A102812 a(0) = 1, a(n) = Sum_{k=1..n} A001263(n,k)*a(k-1) where A001263(n,k) are Narayana numbers.

Table of values

List of values