A120622 - cp's OEIS frontend

A120622 Numbers k such that the k-th Catalan number C(2k, k)/(k + 1) is divisible by k/2 but not divisible by k.

n	a(n)
1	4
2	24
3	40
4	72
5	304
6	480
7	560
8	1032
9	1248
10	1376
11	1440
12	1632
13	1696
14	2128
15	2320
16	2400
17	2576
18	2720
19	3360
20	3520
21	4104
22	4176
23	4240
24	4320
25	4368
26	4704
27	4896
28	5056
29	5280
30	5568
31	5664
32	5824
33	6160
34	6240
35	6592
36	6848
37	6976
38	7200
39	7360
40	7744
41	8064
42	8200
43	8240
44	8272

[4, 24, 40, 72, 304, 480, 560, 1032, 1248, 1376, 1440, 1632, 1696, 2128, 2320, 2400, 2576, 2720, 3360, 3520, 4104, 4176, 4240, 4320, 4368, 4704, 4896, 5056, 5280, 5568, 5664, 5824, 6160, 6240, 6592, 6848, 6976, 7200, 7360, 7744, 8064, 8200, 8240, 8272]

cp's OEIS Frontend

A120622 Numbers k such that the k-th Catalan number C(2k, k)/(k + 1) is divisible by k/2 but not divisible by k.

Table of values

List of values