A157118 - cp's OEIS frontend

A157118 Triangle T(n, k) = f(n, k) + f(n, n-k), where f(n, k) = A001263(nk+1, n-k+1) if k <= n otherwise A001263(n(n-k)+1, k+1) and T(1, k) = 1, read by rows.

n	a(n)
0	2
1	1
2	1
3	1
4	6
5	1
6	1
7	27
8	27
9	1
10	1
11	88
12	672
13	88
14	1
15	1
16	225
17	9150
18	9150
19	225
20	1
21	1
22	486
23	98385
24	395352
25	98385
26	486
27	1
28	1
29	931
30	1126951
31	11748681
32	11748681
33	1126951
34	931
35	1
36	1
37	1632
38	14600320
39	402703120
40	588593280
41	402703120
42	14600320
43	1632
44	1
45	1
46	2673
47	201755880
48	16093941435
49	32251030119
50	32251030119
51	16093941435
52	201755880
53	2673
54	1

[2, 1, 1, 1, 6, 1, 1, 27, 27, 1, 1, 88, 672, 88, 1, 1, 225, 9150, 9150, 225, 1, 1, 486, 98385, 395352, 98385, 486, 1, 1, 931, 1126951, 11748681, 11748681, 1126951, 931, 1, 1, 1632, 14600320, 402703120, 588593280, 402703120, 14600320, 1632, 1, 1, 2673, 201755880, 16093941435, 32251030119, 32251030119, 16093941435, 201755880, 2673, 1]

cp's OEIS Frontend

A157118 Triangle T(n, k) = f(n, k) + f(n, n-k), where f(n, k) = A001263(nk+1, n-k+1) if k <= n otherwise A001263(n(n-k)+1, k+1) and T(1, k) = 1, read by rows.

Table of values

List of values

cp's OEIS Frontend

A157118 Triangle T(n, k) = f(n, k) + f(n, n-k), where f(n, k) = A001263(n*k+1, n-k+1) if k <= n otherwise A001263(n*(n-k)+1, k+1) and T(1, k) = 1, read by rows.

Table of values

List of values

A157118 Triangle T(n, k) = f(n, k) + f(n, n-k), where f(n, k) = A001263(nk+1, n-k+1) if k <= n otherwise A001263(n(n-k)+1, k+1) and T(1, k) = 1, read by rows.