A234350 - cp's OEIS frontend

A234350 Triangle T(n, k) = Number of non-equivalent (mod D_3) ways to arrange k indistinguishable points on a triangular grid of side n so that no three points are collinear. Triangle read by rows.

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	4
7	5
8	2
9	3
10	10
11	22
12	24
13	8
14	1
15	4
16	22
17	77
18	153
19	140
20	47
21	2
22	5
23	41
24	217
25	713
26	1290
27	1112
28	322
29	15
30	7
31	72
32	530
33	2557
34	7374
35	11743
36	8783
37	2412
38	143
39	1
40	8
41	116
42	1149
43	7661
44	32477
45	82988
46	116154
47	77690
48	19621
49	1220
50	5
51	10
52	180
53	2288
54	20055
55	116420
56	433372

[1, 1, 1, 1, 2, 4, 5, 2, 3, 10, 22, 24, 8, 1, 4, 22, 77, 153, 140, 47, 2, 5, 41, 217, 713, 1290, 1112, 322, 15, 7, 72, 530, 2557, 7374, 11743, 8783, 2412, 143, 1, 8, 116, 1149, 7661, 32477, 82988, 116154, 77690, 19621, 1220, 5, 10, 180, 2288, 20055, 116420, 433372]

cp's OEIS Frontend

A234350 Triangle T(n, k) = Number of non-equivalent (mod D_3) ways to arrange k indistinguishable points on a triangular grid of side n so that no three points are collinear. Triangle read by rows.

Table of values

List of values