A220265 - cp's OEIS frontend

A220265 Triangle where the g.f. of row n is: Sum_{k=0..n^2-n+1} T(n,k)y^k = (2(1+y)^n - 1) * ((1+y)^n - 1)^(n-1) / y^(n-1), as read by rows.

n	a(n)
1	1
2	2
3	2
4	9
5	8
6	2
7	9
8	72
9	177
10	222
11	163
12	72
13	18
14	2
15	64
16	800
17	3696
18	9800
19	17408
20	22284
21	21340
22	15554
23	8652
24	3633
25	1120
26	240
27	32
28	2
29	625
30	11250
31	82500
32	365000
33	1131750
34	2654250
35	4922750
36	7425000
37	9274150
38	9704600
39	8566200
40	6398000
41	4042345
42	2152890
43	959690
44	354020

[1, 2, 2, 9, 8, 2, 9, 72, 177, 222, 163, 72, 18, 2, 64, 800, 3696, 9800, 17408, 22284, 21340, 15554, 8652, 3633, 1120, 240, 32, 2, 625, 11250, 82500, 365000, 1131750, 2654250, 4922750, 7425000, 9274150, 9704600, 8566200, 6398000, 4042345, 2152890, 959690, 354020]

cp's OEIS Frontend

A220265 Triangle where the g.f. of row n is: Sum_{k=0..n^2-n+1} T(n,k)y^k = (2(1+y)^n - 1) * ((1+y)^n - 1)^(n-1) / y^(n-1), as read by rows.

Table of values

List of values

cp's OEIS Frontend

A220265 Triangle where the g.f. of row n is: Sum_{k=0..n^2-n+1} T(n,k)*y^k = (2*(1+y)^n - 1) * ((1+y)^n - 1)^(n-1) / y^(n-1), as read by rows.

Table of values

List of values

A220265 Triangle where the g.f. of row n is: Sum_{k=0..n^2-n+1} T(n,k)y^k = (2(1+y)^n - 1) * ((1+y)^n - 1)^(n-1) / y^(n-1), as read by rows.