A336667 - cp's OEIS frontend

A336667 Triangular array read by rows. T(n,k) is the number of closed walks of length 2n along the edges of a cube based at vertex v that return to v exactly k times, n>=0, 0<=k<=n.

n	a(n)
0	1
1	0
2	3
3	0
4	12
5	9
6	0
7	84
8	72
9	27
10	0
11	588
12	648
13	324
14	81
15	0
16	4116
17	5544
18	3564
19	1296
20	243
21	0
22	28812
23	45864
24	35748
25	16848
26	4860
27	729
28	0
29	201684
30	370440
31	337932
32	193104
33	72900
34	17496
35	2187

[1, 0, 3, 0, 12, 9, 0, 84, 72, 27, 0, 588, 648, 324, 81, 0, 4116, 5544, 3564, 1296, 243, 0, 28812, 45864, 35748, 16848, 4860, 729, 0, 201684, 370440, 337932, 193104, 72900, 17496, 2187]

cp's OEIS Frontend

A336667 Triangular array read by rows. T(n,k) is the number of closed walks of length 2n along the edges of a cube based at vertex v that return to v exactly k times, n>=0, 0<=k<=n.

Table of values

List of values