A157273 - cp's OEIS frontend

A157273 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+1 if k <= floor(n/2) otherwise 2(n-k)+1, and m = 2, read by rows.

n	a(n)
0	1
1	1
2	1
3	1
4	12
5	1
6	1
7	47
8	47
9	1
10	1
11	154
12	590
13	154
14	1
15	1
16	477
17	4498
18	4498
19	477
20	1
21	1
22	1448
23	28323
24	71232
25	28323
26	1448
27	1
28	1
29	4363
30	162313
31	816503
32	816503
33	162313
34	4363
35	1
36	1
37	13110
38	882764
39	7897486
40	15979230
41	7897486
42	882764
43	13110
44	1
45	1
46	39353
47	4654100
48	69030716
49	245382470
50	245382470
51	69030716
52	4654100
53	39353
54	1

[1, 1, 1, 1, 12, 1, 1, 47, 47, 1, 1, 154, 590, 154, 1, 1, 477, 4498, 4498, 477, 1, 1, 1448, 28323, 71232, 28323, 1448, 1, 1, 4363, 162313, 816503, 816503, 162313, 4363, 1, 1, 13110, 882764, 7897486, 15979230, 7897486, 882764, 13110, 1, 1, 39353, 4654100, 69030716, 245382470, 245382470, 69030716, 4654100, 39353, 1]

cp's OEIS Frontend

A157273 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+1 if k <= floor(n/2) otherwise 2(n-k)+1, and m = 2, read by rows.

Table of values

List of values

cp's OEIS Frontend

A157273 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+1 if k <= floor(n/2) otherwise 2*(n-k)+1, and m = 2, read by rows.

Table of values

List of values

A157273 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+1 if k <= floor(n/2) otherwise 2(n-k)+1, and m = 2, read by rows.