A061897 - cp's OEIS frontend

A061897 Square table by antidiagonals of number of routes of length 2k+n on the sides of a 2n-gon from a point to its opposite point.

n	a(n)
0	1
1	0
2	2
3	0
4	0
5	2
6	0
7	0
8	4
9	2
10	0
11	0
12	8
13	6
14	2
15	0
16	0
17	16
18	18
19	8
20	2
21	0
22	0
23	32
24	54
25	28
26	10
27	2
28	0
29	0
30	64
31	162
32	96
33	40
34	12
35	2
36	0
37	0
38	128
39	486
40	328
41	150
42	54
43	14
44	2
45	0
46	0
47	256
48	1458
49	1120
50	550
51	220
52	70
53	16
54	2
55	0
56	0
57	512
58	4374
59	3824
60	2000
61	858
62	308
63	88
64	18
65	2
66	0
67	0
68	1024
69	13122
70	13056

[1, 0, 2, 0, 0, 2, 0, 0, 4, 2, 0, 0, 8, 6, 2, 0, 0, 16, 18, 8, 2, 0, 0, 32, 54, 28, 10, 2, 0, 0, 64, 162, 96, 40, 12, 2, 0, 0, 128, 486, 328, 150, 54, 14, 2, 0, 0, 256, 1458, 1120, 550, 220, 70, 16, 2, 0, 0, 512, 4374, 3824, 2000, 858, 308, 88, 18, 2, 0, 0, 1024, 13122, 13056]

cp's OEIS Frontend

A061897 Square table by antidiagonals of number of routes of length 2k+n on the sides of a 2n-gon from a point to its opposite point.

Table of values

List of values