A013611 - cp's OEIS frontend

A013611 Triangle of coefficients in expansion of (1+4x)^n.

n	a(n)
0	1
1	1
2	4
3	1
4	8
5	16
6	1
7	12
8	48
9	64
10	1
11	16
12	96
13	256
14	256
15	1
16	20
17	160
18	640
19	1280
20	1024
21	1
22	24
23	240
24	1280
25	3840
26	6144
27	4096
28	1
29	28
30	336
31	2240
32	8960
33	21504
34	28672
35	16384
36	1
37	32
38	448
39	3584
40	17920
41	57344
42	114688
43	131072
44	65536
45	1
46	36
47	576
48	5376
49	32256
50	129024
51	344064
52	589824
53	589824
54	262144

[1, 1, 4, 1, 8, 16, 1, 12, 48, 64, 1, 16, 96, 256, 256, 1, 20, 160, 640, 1280, 1024, 1, 24, 240, 1280, 3840, 6144, 4096, 1, 28, 336, 2240, 8960, 21504, 28672, 16384, 1, 32, 448, 3584, 17920, 57344, 114688, 131072, 65536, 1, 36, 576, 5376, 32256, 129024, 344064, 589824, 589824, 262144]

cp's OEIS Frontend

A013611 Triangle of coefficients in expansion of (1+4x)^n.

Table of values

List of values