A341800 - cp's OEIS frontend

A341800 Irregular table read by rows: Take a 2 by 1 ellipse with all diagonals drawn, as in A341688. Then T(n,k) = number of k-sided polygons in the figure containing 2n vertices, for k >= 3.

n	a(n)
1	0
2	4
3	18
4	6
5	52
6	28
7	4
8	120
9	84
10	22
11	6
12	244
13	192
14	72
15	16
16	434
17	432
18	124
19	54
20	8
21	748
22	748
23	300
24	52
25	16
26	4
27	1234
28	1232
29	482
30	164
31	26
32	2
33	4
34	1896
35	1940
36	776
37	220
38	36
39	8
40	2764
41	2926
42	1332
43	330
44	78
45	10
46	3892
47	4460
48	1716
49	536
50	88
51	28
52	0
53	4
54	5580
55	5918
56	2642
57	784
58	152
59	44
60	4

[0, 4, 18, 6, 52, 28, 4, 120, 84, 22, 6, 244, 192, 72, 16, 434, 432, 124, 54, 8, 748, 748, 300, 52, 16, 4, 1234, 1232, 482, 164, 26, 2, 4, 1896, 1940, 776, 220, 36, 8, 2764, 2926, 1332, 330, 78, 10, 3892, 4460, 1716, 536, 88, 28, 0, 4, 5580, 5918, 2642, 784, 152, 44, 4]

cp's OEIS Frontend

A341800 Irregular table read by rows: Take a 2 by 1 ellipse with all diagonals drawn, as in A341688. Then T(n,k) = number of k-sided polygons in the figure containing 2n vertices, for k >= 3.

Table of values

List of values