A292155 - cp's OEIS frontend

A292155 Triangle T(m,k) read by rows, where T(m,k) is the number of ways in which 1<=k<=m positions can be picked in an m X m square grid such that the picked positions have a point symmetry but no line symmetry.

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	112
11	0
12	0
13	0
14	528
15	128
16	0
17	0
18	0
19	1800
20	336
21	5928
22	0
23	0
24	0
25	4908
26	1156
27	22628
28	5676
29	0
30	0
31	0
32	11584
33	2432
34	71000
35	14160
36	333994

[0, 0, 0, 0, 0, 0, 0, 0, 0, 112, 0, 0, 0, 528, 128, 0, 0, 0, 1800, 336, 5928, 0, 0, 0, 4908, 1156, 22628, 5676, 0, 0, 0, 11584, 2432, 71000, 14160, 333994]

cp's OEIS Frontend

A292155 Triangle T(m,k) read by rows, where T(m,k) is the number of ways in which 1<=k<=m positions can be picked in an m X m square grid such that the picked positions have a point symmetry but no line symmetry.

Table of values

List of values