A135835 - cp's OEIS frontend

A135835 Lower triangular matrix T with first column and diagonal (1,2,3,4,...,n,...) and otherwise satisfying T(i,j) = Sum_{k=1..j} T(i-j+1,k)*T(j,k), read by rows.

n	a(n)
1	1
2	2
3	2
4	3
5	8
6	3
7	4
8	22
9	22
10	4
11	5
12	52
13	82
14	52
15	5
16	6
17	114
18	254
19	254
20	114
21	6
22	7
23	240
24	677
25	1000
26	677
27	240
28	7
29	8
30	494
31	1692
32	3176
33	3176
34	1692
35	494
36	8
37	9
38	1004
39	3972
40	9136
41	12182
42	9136
43	3972
44	1004
45	9
46	10
47	2026
48	9052
49	24202
50	40564
51	40564
52	24202
53	9052
54	2026
55	10
56	11
57	4072
58	19975
59	60828
60	123414
61	155096
62	123414
63	60828
64	19975
65	4072
66	11

[1, 2, 2, 3, 8, 3, 4, 22, 22, 4, 5, 52, 82, 52, 5, 6, 114, 254, 254, 114, 6, 7, 240, 677, 1000, 677, 240, 7, 8, 494, 1692, 3176, 3176, 1692, 494, 8, 9, 1004, 3972, 9136, 12182, 9136, 3972, 1004, 9, 10, 2026, 9052, 24202, 40564, 40564, 24202, 9052, 2026, 10, 11, 4072, 19975, 60828, 123414, 155096, 123414, 60828, 19975, 4072, 11]

cp's OEIS Frontend

A135835 Lower triangular matrix T with first column and diagonal (1,2,3,4,...,n,...) and otherwise satisfying T(i,j) = Sum_{k=1..j} T(i-j+1,k)*T(j,k), read by rows.

Table of values

List of values