A058187 - cp's OEIS frontend

A058187 Expansion of (1+x)/(1-x^2)^4: duplicated tetrahedral numbers.

n	a(n)
0	1
1	1
2	4
3	4
4	10
5	10
6	20
7	20
8	35
9	35
10	56
11	56
12	84
13	84
14	120
15	120
16	165
17	165
18	220
19	220
20	286
21	286
22	364
23	364
24	455
25	455
26	560
27	560
28	680
29	680
30	816
31	816
32	969
33	969
34	1140
35	1140
36	1330
37	1330
38	1540
39	1540
40	1771
41	1771
42	2024
43	2024
44	2300
45	2300
46	2600
47	2600
48	2925
49	2925
50	3276
51	3276

[1, 1, 4, 4, 10, 10, 20, 20, 35, 35, 56, 56, 84, 84, 120, 120, 165, 165, 220, 220, 286, 286, 364, 364, 455, 455, 560, 560, 680, 680, 816, 816, 969, 969, 1140, 1140, 1330, 1330, 1540, 1540, 1771, 1771, 2024, 2024, 2300, 2300, 2600, 2600, 2925, 2925, 3276, 3276]

cp's OEIS Frontend

A058187 Expansion of (1+x)/(1-x^2)^4: duplicated tetrahedral numbers.

Table of values

List of values