A257611 - cp's OEIS frontend

A257611 Triangle, read by rows, T(n,k) = t(n-k, k) where t(n,m) = f(m)t(n-1,m) + f(n)t(n,m-1) and f(n) = 2*n + 3.

n	a(n)
0	1
1	3
2	3
3	9
4	30
5	9
6	27
7	213
8	213
9	27
10	81
11	1308
12	2982
13	1308
14	81
15	243
16	7431
17	32646
18	32646
19	7431
20	243
21	729
22	40314
23	310263
24	587628
25	310263
26	40314
27	729
28	2187
29	212505
30	2695923
31	8701545
32	8701545
33	2695923
34	212505
35	2187
36	6561
37	1099704
38	22059036
39	113360904
40	191433990
41	113360904
42	22059036
43	1099704
44	6561

[1, 3, 3, 9, 30, 9, 27, 213, 213, 27, 81, 1308, 2982, 1308, 81, 243, 7431, 32646, 32646, 7431, 243, 729, 40314, 310263, 587628, 310263, 40314, 729, 2187, 212505, 2695923, 8701545, 8701545, 2695923, 212505, 2187, 6561, 1099704, 22059036, 113360904, 191433990, 113360904, 22059036, 1099704, 6561]

cp's OEIS Frontend

A257611 Triangle, read by rows, T(n,k) = t(n-k, k) where t(n,m) = f(m)t(n-1,m) + f(n)t(n,m-1) and f(n) = 2*n + 3.

Table of values

List of values

cp's OEIS Frontend

A257611 Triangle, read by rows, T(n,k) = t(n-k, k) where t(n,m) = f(m)*t(n-1,m) + f(n)*t(n,m-1) and f(n) = 2*n + 3.

Table of values

List of values

A257611 Triangle, read by rows, T(n,k) = t(n-k, k) where t(n,m) = f(m)t(n-1,m) + f(n)t(n,m-1) and f(n) = 2*n + 3.