A199908 - cp's OEIS frontend

A199908 Number of -7..7 arrays x(0..n-1) of n elements with zero sum, and adjacent elements not equal modulo three (with -1 modulo 3 = 2).

n	a(n)
1	1
2	10
3	114
4	680
5	6064
6	62776
7	518560
8	4854740
9	47329800
10	436295060
11	4163000530
12	40224691008
13	383919683336
14	3702037559404
15	35864644194258
16	346836775041832
17	3366637367524806
18	32752033994479420
19	318790073410891420

[1, 10, 114, 680, 6064, 62776, 518560, 4854740, 47329800, 436295060, 4163000530, 40224691008, 383919683336, 3702037559404, 35864644194258, 346836775041832, 3366637367524806, 32752033994479420, 318790073410891420]

cp's OEIS Frontend

A199908 Number of -7..7 arrays x(0..n-1) of n elements with zero sum, and adjacent elements not equal modulo three (with -1 modulo 3 = 2).

Table of values

List of values