A128079 - cp's OEIS frontend

A128079 a(n) = Sum_{k=0..n} A000984(k)*A001263(n+1,k+1), where A000984 is the central binomial coefficients and A001263 is the Narayana triangle.

n	a(n)
0	1
1	3
2	13
3	69
4	411
5	2633
6	17739
7	124029
8	892327
9	6567285
10	49235715
11	374841195
12	2890994445
13	22545855855
14	177524073021
15	1409591810133
16	11275693221519
17	90792020672429
18	735367765159347
19	5987665336600683
20	48987680485918149

[1, 3, 13, 69, 411, 2633, 17739, 124029, 892327, 6567285, 49235715, 374841195, 2890994445, 22545855855, 177524073021, 1409591810133, 11275693221519, 90792020672429, 735367765159347, 5987665336600683, 48987680485918149]

cp's OEIS Frontend

A128079 a(n) = Sum_{k=0..n} A000984(k)*A001263(n+1,k+1), where A000984 is the central binomial coefficients and A001263 is the Narayana triangle.

Table of values

List of values