A084600 - cp's OEIS frontend

A084600 Triangle, read by rows, where the n-th row lists the (2n+1) coefficients of (1+x+2x^2)^n for n >= 0.

n	a(n)
0	1
1	1
2	1
3	2
4	1
5	2
6	5
7	4
8	4
9	1
10	3
11	9
12	13
13	18
14	12
15	8
16	1
17	4
18	14
19	28
20	49
21	56
22	56
23	32
24	16
25	1
26	5
27	20
28	50
29	105
30	161
31	210
32	200
33	160
34	80
35	32
36	1
37	6
38	27
39	80
40	195
41	366
42	581
43	732
44	780
45	640
46	432
47	192
48	64
49	1
50	7
51	35
52	119
53	329
54	721
55	1337
56	2045
57	2674
58	2884
59	2632
60	1904
61	1120
62	448
63	128
64	1
65	8
66	44

[1, 1, 1, 2, 1, 2, 5, 4, 4, 1, 3, 9, 13, 18, 12, 8, 1, 4, 14, 28, 49, 56, 56, 32, 16, 1, 5, 20, 50, 105, 161, 210, 200, 160, 80, 32, 1, 6, 27, 80, 195, 366, 581, 732, 780, 640, 432, 192, 64, 1, 7, 35, 119, 329, 721, 1337, 2045, 2674, 2884, 2632, 1904, 1120, 448, 128, 1, 8, 44]

cp's OEIS Frontend

A084600 Triangle, read by rows, where the n-th row lists the (2n+1) coefficients of (1+x+2x^2)^n for n >= 0.

Table of values

List of values