A157275 - cp's OEIS frontend

A157275 Triangle T(n, k, m) = (m(n-k) + 1)T(n-1, k-1, m) + (mk + 1)T(n-1, k, m) + mf(n,k)T(n-2, k-1, m) with T(n, 0, m) = T(n, n, m) = 1, f(n, k) = 2k if k <= floor(n/2) otherwise 2(n-k), and m = 1, read by rows.

n	a(n)
0	1
1	1
2	1
3	1
4	6
5	1
6	1
7	17
8	17
9	1
10	1
11	40
12	126
13	40
14	1
15	1
16	87
17	606
18	606
19	87
20	1
21	1
22	182
23	2413
24	5604
25	2413
26	182
27	1
28	1
29	373
30	8679
31	38117
32	38117
33	8679
34	373
35	1
36	1
37	756
38	29376
39	219020
40	426002
41	219020
42	29376
43	756
44	1
45	1
46	1523
47	95668
48	1133786
49	3749066
50	3749066
51	1133786
52	95668
53	1523
54	1

[1, 1, 1, 1, 6, 1, 1, 17, 17, 1, 1, 40, 126, 40, 1, 1, 87, 606, 606, 87, 1, 1, 182, 2413, 5604, 2413, 182, 1, 1, 373, 8679, 38117, 38117, 8679, 373, 1, 1, 756, 29376, 219020, 426002, 219020, 29376, 756, 1, 1, 1523, 95668, 1133786, 3749066, 3749066, 1133786, 95668, 1523, 1]

cp's OEIS Frontend

A157275 Triangle T(n, k, m) = (m(n-k) + 1)T(n-1, k-1, m) + (mk + 1)T(n-1, k, m) + mf(n,k)T(n-2, k-1, m) with T(n, 0, m) = T(n, n, m) = 1, f(n, k) = 2k if k <= floor(n/2) otherwise 2(n-k), and m = 1, read by rows.

Table of values

List of values

cp's OEIS Frontend

A157275 Triangle T(n, k, m) = (m*(n-k) + 1)*T(n-1, k-1, m) + (m*k + 1)*T(n-1, k, m) + m*f(n,k)*T(n-2, k-1, m) with T(n, 0, m) = T(n, n, m) = 1, f(n, k) = 2*k if k <= floor(n/2) otherwise 2*(n-k), and m = 1, read by rows.

Table of values

List of values

A157275 Triangle T(n, k, m) = (m(n-k) + 1)T(n-1, k-1, m) + (mk + 1)T(n-1, k, m) + mf(n,k)T(n-2, k-1, m) with T(n, 0, m) = T(n, n, m) = 1, f(n, k) = 2k if k <= floor(n/2) otherwise 2(n-k), and m = 1, read by rows.