A083096 - cp's OEIS frontend

A083096 Numbers k such that 3 divides Sum_{j=1..k} binomial(2*j,j).

n	a(n)
1	0
2	12
3	30
4	36
5	84
6	90
7	108
8	120
9	246
10	252
11	270
12	282
13	324
14	336
15	354
16	360
17	732
18	738
19	756
20	768
21	810
22	822
23	840
24	846
25	972
26	984
27	1002
28	1008
29	1056
30	1062
31	1080
32	1092
33	2190
34	2196
35	2214
36	2226
37	2268
38	2280
39	2298
40	2304
41	2430
42	2442
43	2460
44	2466
45	2514
46	2520
47	2538
48	2550

[0, 12, 30, 36, 84, 90, 108, 120, 246, 252, 270, 282, 324, 336, 354, 360, 732, 738, 756, 768, 810, 822, 840, 846, 972, 984, 1002, 1008, 1056, 1062, 1080, 1092, 2190, 2196, 2214, 2226, 2268, 2280, 2298, 2304, 2430, 2442, 2460, 2466, 2514, 2520, 2538, 2550]

cp's OEIS Frontend

A083096 Numbers k such that 3 divides Sum_{j=1..k} binomial(2*j,j).

Table of values

List of values