A331909 - cp's OEIS frontend

A331909 Triangle read by rows: Take a hexagram with all diagonals drawn, as in A331908. Then T(n,k) = number of k-sided polygons in that figure for k = 3, 4, ..., n+5.

n	a(n)
1	132
2	36
3	0
4	0
5	2052
6	1188
7	324
8	24
9	0
10	10440
11	7956
12	1728
13	300
14	0
15	0
16	33672
17	28812
18	9276
19	1836
20	228
21	24
22	12
23	83040
24	75276
25	24948
26	5436
27	708
28	60
29	0
30	0
31	172140
32	162060
33	54732
34	11280
35	1836
36	168
37	0
38	0
39	0
40	322284
41	315492
42	114624
43	25980
44	3948
45	456
46	24
47	0
48	0
49	0

[132, 36, 0, 0, 2052, 1188, 324, 24, 0, 10440, 7956, 1728, 300, 0, 0, 33672, 28812, 9276, 1836, 228, 24, 12, 83040, 75276, 24948, 5436, 708, 60, 0, 0, 172140, 162060, 54732, 11280, 1836, 168, 0, 0, 0, 322284, 315492, 114624, 25980, 3948, 456, 24, 0, 0, 0]

cp's OEIS Frontend

A331909 Triangle read by rows: Take a hexagram with all diagonals drawn, as in A331908. Then T(n,k) = number of k-sided polygons in that figure for k = 3, 4, ..., n+5.

Table of values

List of values