A358437 - cp's OEIS frontend

A358437 a(n) = Sum_{j=0..n} binomial(n, j)C(n)C(n-j), where C(n) is the n-th Catalan number.

n	a(n)
0	1
1	2
2	10
3	75
4	714
5	7896
6	96492
7	1265550
8	17496050
9	251958564
10	3748716036
11	57282665622
12	895001791740
13	14249639190000
14	230568513719400
15	3783394404776475
16	62848104088770450
17	1055378592304360500
18	17894108081334292500
19	306026774743629058350
20	5274529871824080624900

[1, 2, 10, 75, 714, 7896, 96492, 1265550, 17496050, 251958564, 3748716036, 57282665622, 895001791740, 14249639190000, 230568513719400, 3783394404776475, 62848104088770450, 1055378592304360500, 17894108081334292500, 306026774743629058350, 5274529871824080624900]

cp's OEIS Frontend

A358437 a(n) = Sum_{j=0..n} binomial(n, j)C(n)C(n-j), where C(n) is the n-th Catalan number.

Table of values

List of values

cp's OEIS Frontend

A358437 a(n) = Sum_{j=0..n} binomial(n, j)*C(n)*C(n-j), where C(n) is the n-th Catalan number.

Table of values

List of values

A358437 a(n) = Sum_{j=0..n} binomial(n, j)C(n)C(n-j), where C(n) is the n-th Catalan number.