A084606 - cp's OEIS frontend

A084606 Triangle, read by rows, where the n-th row lists the (2n+1) coefficients of (1+2x+2x^2)^n.

n	a(n)
0	1
1	1
2	2
3	2
4	1
5	4
6	8
7	8
8	4
9	1
10	6
11	18
12	32
13	36
14	24
15	8
16	1
17	8
18	32
19	80
20	136
21	160
22	128
23	64
24	16
25	1
26	10
27	50
28	160
29	360
30	592
31	720
32	640
33	400
34	160
35	32
36	1
37	12
38	72
39	280
40	780
41	1632
42	2624
43	3264
44	3120
45	2240
46	1152
47	384
48	64
49	1
50	14
51	98
52	448
53	1484
54	3752
55	7448
56	11776
57	14896
58	15008
59	11872

[1, 1, 2, 2, 1, 4, 8, 8, 4, 1, 6, 18, 32, 36, 24, 8, 1, 8, 32, 80, 136, 160, 128, 64, 16, 1, 10, 50, 160, 360, 592, 720, 640, 400, 160, 32, 1, 12, 72, 280, 780, 1632, 2624, 3264, 3120, 2240, 1152, 384, 64, 1, 14, 98, 448, 1484, 3752, 7448, 11776, 14896, 15008, 11872]

cp's OEIS Frontend

A084606 Triangle, read by rows, where the n-th row lists the (2n+1) coefficients of (1+2x+2x^2)^n.

Table of values

List of values