A383609 - cp's OEIS frontend

A383609 Triangle read by rows: T(n,k) = T(n-1, k-2) + T(n-1, k-1) + T(n-1, k) for 0 < k < n, T(n,0) = T(n,n) = 1.

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	1
6	1
7	3
8	4
9	1
10	1
11	4
12	8
13	8
14	1
15	1
16	5
17	13
18	20
19	17
20	1
21	1
22	6
23	19
24	38
25	50
26	38
27	1
28	1
29	7
30	26
31	63
32	107
33	126
34	89
35	1
36	1
37	8
38	34
39	96
40	196
41	296
42	322
43	216
44	1
45	1
46	9
47	43
48	138
49	326
50	588
51	814
52	834
53	539
54	1
55	1
56	10
57	53
58	190
59	507
60	1052
61	1728
62	2236
63	2187
64	1374
65	1

[1, 1, 1, 1, 2, 1, 1, 3, 4, 1, 1, 4, 8, 8, 1, 1, 5, 13, 20, 17, 1, 1, 6, 19, 38, 50, 38, 1, 1, 7, 26, 63, 107, 126, 89, 1, 1, 8, 34, 96, 196, 296, 322, 216, 1, 1, 9, 43, 138, 326, 588, 814, 834, 539, 1, 1, 10, 53, 190, 507, 1052, 1728, 2236, 2187, 1374, 1]

cp's OEIS Frontend

A383609 Triangle read by rows: T(n,k) = T(n-1, k-2) + T(n-1, k-1) + T(n-1, k) for 0 < k < n, T(n,0) = T(n,n) = 1.

Table of values

List of values