A229426 - cp's OEIS frontend

A229426 Number of n X 6 0..2 arrays with horizontal differences mod 3 never 1, vertical differences mod 3 never -1, rows lexicographically nondecreasing, and columns lexicographically nonincreasing.

n	a(n)
1	23
2	175
3	1116
4	5700
5	24126
6	87648
7	281016
8	812352
9	2152643
10	5297329
11	12231874
12	26724490
13	55625600
14	110928984
15	212948248
16	395089316
17	710860767
18	1243965435
19	2122565928
20	3539121568
21	5777563514
22	9250018192
23	14545817232
24	22496156480

[23, 175, 1116, 5700, 24126, 87648, 281016, 812352, 2152643, 5297329, 12231874, 26724490, 55625600, 110928984, 212948248, 395089316, 710860767, 1243965435, 2122565928, 3539121568, 5777563514, 9250018192, 14545817232, 22496156480]

cp's OEIS Frontend

A229426 Number of n X 6 0..2 arrays with horizontal differences mod 3 never 1, vertical differences mod 3 never -1, rows lexicographically nondecreasing, and columns lexicographically nonincreasing.

Table of values

List of values