A165890 - cp's OEIS frontend

A165890 Irregular triangle T(n, k) = [x^k]( p(n, x) ), where p(n, x) = ( (1-x)^(n+1) * Sum_{k >= 0} (2k+1)^(n-1)x^k )^2, read by rows.

n	a(n)
0	1
1	1
2	-2
3	1
4	1
5	0
6	-2
7	0
8	1
9	1
10	10
11	15
12	-52
13	15
14	10
15	1
16	1
17	44
18	484
19	-44
20	-970
21	-44
22	484
23	44
24	1
25	1
26	150
27	5933
28	22792
29	466
30	-58684
31	466
32	22792
33	5933
34	150
35	1
36	1
37	472
38	58586
39	682040
40	2085135
41	-682512
42	-4287444
43	-682512
44	2085135
45	682040
46	58586
47	472
48	1

[1, 1, -2, 1, 1, 0, -2, 0, 1, 1, 10, 15, -52, 15, 10, 1, 1, 44, 484, -44, -970, -44, 484, 44, 1, 1, 150, 5933, 22792, 466, -58684, 466, 22792, 5933, 150, 1, 1, 472, 58586, 682040, 2085135, -682512, -4287444, -682512, 2085135, 682040, 58586, 472, 1]

cp's OEIS Frontend

A165890 Irregular triangle T(n, k) = [x^k]( p(n, x) ), where p(n, x) = ( (1-x)^(n+1) * Sum_{k >= 0} (2k+1)^(n-1)x^k )^2, read by rows.

Table of values

List of values

cp's OEIS Frontend

A165890 Irregular triangle T(n, k) = [x^k]( p(n, x) ), where p(n, x) = ( (1-x)^(n+1) * Sum_{k >= 0} (2*k+1)^(n-1)*x^k )^2, read by rows.

Table of values

List of values

A165890 Irregular triangle T(n, k) = [x^k]( p(n, x) ), where p(n, x) = ( (1-x)^(n+1) * Sum_{k >= 0} (2k+1)^(n-1)x^k )^2, read by rows.