A264424 - cp's OEIS frontend

A264424 Number of (3+1) X (n+1) arrays of permutations of 0..n*4+3 with each element having directed index change 0,1 2,2 1,0 -1,2 -2,-1 or -1,-1.

n	a(n)
1	1
2	20
3	96
4	499
5	2681
6	15088
7	86469
8	479787
9	2666733
10	14940857
11	83531649
12	466766772
13	2608467230
14	14576309209
15	81469725947
16	455319456892
17	2544569549821
18	14220929241086
19	79476850018075
20	444172492025104
21	2482352553030166

[1, 20, 96, 499, 2681, 15088, 86469, 479787, 2666733, 14940857, 83531649, 466766772, 2608467230, 14576309209, 81469725947, 455319456892, 2544569549821, 14220929241086, 79476850018075, 444172492025104, 2482352553030166]

cp's OEIS Frontend

A264424 Number of (3+1) X (n+1) arrays of permutations of 0..n*4+3 with each element having directed index change 0,1 2,2 1,0 -1,2 -2,-1 or -1,-1.

Table of values

List of values