A274798 - cp's OEIS frontend

A274798 Number of n X 3 0..2 arrays with no element equal to any value at offset (-1,-2) (-2,-1) (0,-1) or (-1,0) and new values introduced in order 0..2.

n	a(n)
1	2
2	8
3	30
4	112
5	420
6	1572
7	5888
8	22048
9	82568
10	309200
11	1157904
12	4336144
13	16238112
14	60808896
15	227718752
16	852767104
17	3193464512
18	11958969152
19	44784259584
20	167709263104
21	628042022016
22	2351908141824
23	8807486941952
24	32982506778880

[2, 8, 30, 112, 420, 1572, 5888, 22048, 82568, 309200, 1157904, 4336144, 16238112, 60808896, 227718752, 852767104, 3193464512, 11958969152, 44784259584, 167709263104, 628042022016, 2351908141824, 8807486941952, 32982506778880]

cp's OEIS Frontend

A274798 Number of n X 3 0..2 arrays with no element equal to any value at offset (-1,-2) (-2,-1) (0,-1) or (-1,0) and new values introduced in order 0..2.

Table of values

List of values