A234950 - cp's OEIS frontend

A234950 Borel's triangle read by rows: T(n,k) = Sum_{s=k..n} binomial(s,k)*C(n,s), where C(n,s) is an entry in Catalan's triangle A009766.

n	a(n)
0	1
1	2
2	1
3	5
4	6
5	2
6	14
7	28
8	20
9	5
10	42
11	120
12	135
13	70
14	14
15	132
16	495
17	770
18	616
19	252
20	42
21	429
22	2002
23	4004
24	4368
25	2730
26	924
27	132
28	1430
29	8008
30	19656
31	27300
32	23100
33	11880
34	3432
35	429
36	4862
37	31824
38	92820
39	157080
40	168300
41	116688
42	51051
43	12870
44	1430

[1, 2, 1, 5, 6, 2, 14, 28, 20, 5, 42, 120, 135, 70, 14, 132, 495, 770, 616, 252, 42, 429, 2002, 4004, 4368, 2730, 924, 132, 1430, 8008, 19656, 27300, 23100, 11880, 3432, 429, 4862, 31824, 92820, 157080, 168300, 116688, 51051, 12870, 1430]

cp's OEIS Frontend

A234950 Borel's triangle read by rows: T(n,k) = Sum_{s=k..n} binomial(s,k)*C(n,s), where C(n,s) is an entry in Catalan's triangle A009766.

Table of values

List of values