A316989 - cp's OEIS frontend

A316989 Irregular triangle read by rows: row n consists of the coefficients in the expansion of the polynomial (x^2 + 4x + 3)(x + 1)^(2n) + (x^2 - 1)(x^2 + 3*x + 3).

n	a(n)
0	0
1	1
2	3
3	3
4	1
5	0
6	7
7	14
8	9
9	2
10	0
11	13
12	37
13	43
14	26
15	8
16	1
17	0
18	19
19	72
20	129
21	141
22	98
23	42
24	10
25	1
26	0
27	25
28	119
29	291
30	463
31	504
32	378
33	192
34	63
35	12
36	1
37	0
38	31
39	178
40	553
41	1156
42	1716
43	1848
44	1452
45	825
46	330
47	88
48	14
49	1
50	0
51	37
52	249
53	939
54	2432
55	4576
56	6435
57	6864
58	5577
59	3432
60	1573

[0, 1, 3, 3, 1, 0, 7, 14, 9, 2, 0, 13, 37, 43, 26, 8, 1, 0, 19, 72, 129, 141, 98, 42, 10, 1, 0, 25, 119, 291, 463, 504, 378, 192, 63, 12, 1, 0, 31, 178, 553, 1156, 1716, 1848, 1452, 825, 330, 88, 14, 1, 0, 37, 249, 939, 2432, 4576, 6435, 6864, 5577, 3432, 1573]

cp's OEIS Frontend

A316989 Irregular triangle read by rows: row n consists of the coefficients in the expansion of the polynomial (x^2 + 4x + 3)(x + 1)^(2n) + (x^2 - 1)(x^2 + 3*x + 3).

Table of values

List of values

cp's OEIS Frontend

A316989 Irregular triangle read by rows: row n consists of the coefficients in the expansion of the polynomial (x^2 + 4*x + 3)*(x + 1)^(2*n) + (x^2 - 1)*(x^2 + 3*x + 3).

Table of values

List of values

A316989 Irregular triangle read by rows: row n consists of the coefficients in the expansion of the polynomial (x^2 + 4x + 3)(x + 1)^(2n) + (x^2 - 1)(x^2 + 3*x + 3).