A220956 - cp's OEIS frontend

A220956 (Binomial(2n, n) - binomial(2n - 2, n - 1)) (mod n^2) - n - 2.

n	a(n)
1	-3
2	-4
3	0
4	-4
5	0
6	16
7	0
8	20
9	18
10	24
11	0
12	-10
13	0
14	32
15	28
16	100
17	0
18	148
19	0
20	198
21	403
22	48
23	0
24	82
25	250
26	56
27	18
28	138
29	0
30	752
31	0
32	644
33	436
34	72
35	705
36	950
37	0
38	80
39	369
40	1178
41	0
42	1468
43	0
44	1322
45	448
46	96
47	0
48	1930
49	1029
50	1104
51	766
52	146
53	0
54	2488
55	1680
56	478
57	3058
58	120
59	0
60	2674
61	0

[-3, -4, 0, -4, 0, 16, 0, 20, 18, 24, 0, -10, 0, 32, 28, 100, 0, 148, 0, 198, 403, 48, 0, 82, 250, 56, 18, 138, 0, 752, 0, 644, 436, 72, 705, 950, 0, 80, 369, 1178, 0, 1468, 0, 1322, 448, 96, 0, 1930, 1029, 1104, 766, 146, 0, 2488, 1680, 478, 3058, 120, 0, 2674, 0]

cp's OEIS Frontend

A220956 (Binomial(2n, n) - binomial(2n - 2, n - 1)) (mod n^2) - n - 2.

Table of values

List of values