A349815 - cp's OEIS frontend

A349815 Triangle read by rows: row 1 is [1]; for n >= 1, row n gives coefficients of expansion of (-1 - x + x^2 + x^3)*(1 + x + x^2 + x^3)^(n-1) in order of increasing powers of x.

n	a(n)
0	1
1	-1
2	-1
3	1
4	1
5	-1
6	-2
7	-1
8	0
9	1
10	2
11	1
12	-1
13	-3
14	-4
15	-4
16	-2
17	2
18	4
19	4
20	3
21	1
22	-1
23	-4
24	-8
25	-12
26	-13
27	-8
28	0
29	8
30	13
31	12
32	8
33	4
34	1
35	-1
36	-5
37	-13
38	-25
39	-37
40	-41
41	-33
42	-13
43	13
44	33
45	41
46	37
47	25
48	13
49	5
50	1
51	-1
52	-6
53	-19
54	-44
55	-80
56	-116
57	-136
58	-124
59	-74
60	0
61	74
62	124
63	136
64	116
65	80
66	44
67	19
68	6
69	1
70	-1
71	-7
72	-26
73	-70
74	-149
75	-259
76	-376
77	-456
78	-450
79	-334
80	-124
81	124
82	334
83	450
84	456
85	376
86	259
87	149
88	70
89	26
90	7
91	1

[1, -1, -1, 1, 1, -1, -2, -1, 0, 1, 2, 1, -1, -3, -4, -4, -2, 2, 4, 4, 3, 1, -1, -4, -8, -12, -13, -8, 0, 8, 13, 12, 8, 4, 1, -1, -5, -13, -25, -37, -41, -33, -13, 13, 33, 41, 37, 25, 13, 5, 1, -1, -6, -19, -44, -80, -116, -136, -124, -74, 0, 74, 124, 136, 116, 80, 44, 19, 6, 1, -1, -7, -26, -70, -149, -259, -376, -456, -450, -334, -124, 124, 334, 450, 456, 376, 259, 149, 70, 26, 7, 1]

cp's OEIS Frontend

A349815 Triangle read by rows: row 1 is [1]; for n >= 1, row n gives coefficients of expansion of (-1 - x + x^2 + x^3)*(1 + x + x^2 + x^3)^(n-1) in order of increasing powers of x.

Table of values

List of values