A268303 - cp's OEIS frontend

A268303 Composite numbers n such that Sum_{k = 0..n} (-1)^k * C(n,k) * C(2*n,k) == -1 (mod n^3) (see A234839).

n	a(n)
1	10
2	25
3	146
4	586
5	2186
6	2386
7	2594
8	2642
9	4162
10	4226
11	4258
12	5186
13	7745
14	8258
15	8354
16	8458
17	8714
18	8746
19	8842
20	10306
21	10378
22	10786
23	10826
24	10834
25	10898
26	16418
27	16546
28	16706
29	17026
30	17674
31	20546
32	20642
33	20738
34	32834
35	32906
36	33322
37	33505
38	33802
39	34058
40	35338

[10, 25, 146, 586, 2186, 2386, 2594, 2642, 4162, 4226, 4258, 5186, 7745, 8258, 8354, 8458, 8714, 8746, 8842, 10306, 10378, 10786, 10826, 10834, 10898, 16418, 16546, 16706, 17026, 17674, 20546, 20642, 20738, 32834, 32906, 33322, 33505, 33802, 34058, 35338]

cp's OEIS Frontend

A268303 Composite numbers n such that Sum_{k = 0..n} (-1)^k * C(n,k) * C(2*n,k) == -1 (mod n^3) (see A234839).

Table of values

List of values