A131429 - cp's OEIS frontend

A131429 Triangle read by rows: T(n,k) = C(n) + C(k) - 1 where C(n) = A000108(n) are the Catalan numbers, 0 <= k <= n.

n	a(n)
0	1
1	1
2	1
3	2
4	2
5	3
6	5
7	5
8	6
9	9
10	14
11	14
12	15
13	18
14	27
15	42
16	42
17	43
18	46
19	55
20	83
21	132
22	132
23	133
24	136
25	145
26	173
27	263
28	429
29	429
30	430
31	433
32	442
33	470
34	560
35	857
36	1430
37	1430
38	1431
39	1434
40	1443
41	1471
42	1561
43	1858
44	2859
45	4862
46	4862
47	4863
48	4866
49	4875
50	4903
51	4993
52	5290
53	6291
54	9723

[1, 1, 1, 2, 2, 3, 5, 5, 6, 9, 14, 14, 15, 18, 27, 42, 42, 43, 46, 55, 83, 132, 132, 133, 136, 145, 173, 263, 429, 429, 430, 433, 442, 470, 560, 857, 1430, 1430, 1431, 1434, 1443, 1471, 1561, 1858, 2859, 4862, 4862, 4863, 4866, 4875, 4903, 4993, 5290, 6291, 9723]

cp's OEIS Frontend

A131429 Triangle read by rows: T(n,k) = C(n) + C(k) - 1 where C(n) = A000108(n) are the Catalan numbers, 0 <= k <= n.

Table of values

List of values