A028376 - cp's OEIS frontend

A028376 Triangle read by rows: T(n,m) = Sum Catalan(n-k)*Catalan(k), k=0..m.

n	a(n)
0	0
1	0
2	1
3	0
4	1
5	2
6	0
7	2
8	3
9	5
10	0
11	5
12	7
13	9
14	14
15	0
16	14
17	19
18	23
19	28
20	42
21	0
22	42
23	56
24	66
25	76
26	90
27	132
28	0
29	132
30	174
31	202
32	227
33	255
34	297
35	429
36	0
37	429
38	561
39	645
40	715
41	785
42	869
43	1001
44	1430
45	0
46	1430
47	1859
48	2123
49	2333
50	2529
51	2739
52	3003
53	3432
54	4862
55	0
56	4862
57	6292
58	7150

[0, 0, 1, 0, 1, 2, 0, 2, 3, 5, 0, 5, 7, 9, 14, 0, 14, 19, 23, 28, 42, 0, 42, 56, 66, 76, 90, 132, 0, 132, 174, 202, 227, 255, 297, 429, 0, 429, 561, 645, 715, 785, 869, 1001, 1430, 0, 1430, 1859, 2123, 2333, 2529, 2739, 3003, 3432, 4862, 0, 4862, 6292, 7150]

cp's OEIS Frontend

A028376 Triangle read by rows: T(n,m) = Sum Catalan(n-k)*Catalan(k), k=0..m.

Table of values

List of values