A162206 - cp's OEIS frontend

A162206 Triangle read by rows in which row n (n >= 1) gives coefficients in expansion of the polynomial f(n) * Product_{i=1..n-1} f(2i), where f(k) = (1 - x^k)/(1-x).

n	a(n)
1	1
2	1
3	2
4	1
5	1
6	3
7	5
8	6
9	5
10	3
11	1
12	1
13	4
14	9
15	16
16	23
17	28
18	30
19	28
20	23
21	16
22	9
23	4
24	1
25	1
26	5
27	14
28	30
29	54
30	85
31	120
32	155
33	185
34	205
35	212
36	205
37	185
38	155
39	120
40	85
41	54
42	30
43	14
44	5
45	1
46	1
47	6
48	20
49	50
50	104
51	190
52	314
53	478
54	679
55	908
56	1151
57	1390
58	1605
59	1776
60	1886
61	1924
62	1886
63	1776

[1, 1, 2, 1, 1, 3, 5, 6, 5, 3, 1, 1, 4, 9, 16, 23, 28, 30, 28, 23, 16, 9, 4, 1, 1, 5, 14, 30, 54, 85, 120, 155, 185, 205, 212, 205, 185, 155, 120, 85, 54, 30, 14, 5, 1, 1, 6, 20, 50, 104, 190, 314, 478, 679, 908, 1151, 1390, 1605, 1776, 1886, 1924, 1886, 1776]

cp's OEIS Frontend

A162206 Triangle read by rows in which row n (n >= 1) gives coefficients in expansion of the polynomial f(n) * Product_{i=1..n-1} f(2i), where f(k) = (1 - x^k)/(1-x).

Table of values

List of values