A275498 - cp's OEIS frontend

A275498 Number of n X 2 0..2 arrays with no element equal to any value at offset (-2,-1) (-2,0) or (-1,-1) and new values introduced in order 0..2.

n	a(n)
1	2
2	9
3	16
4	28
5	56
6	104
7	200
8	380
9	724
10	1380
11	2628
12	5008
13	9540
14	18176
15	34628
16	65972
17	125688
18	239456
19	456204
20	869144
21	1655864
22	3154696
23	6010220
24	11450468
25	21815044
26	41561284
27	79181152
28	150853252
29	287400512
30	547545732
31	1043165604
32	1987403816

[2, 9, 16, 28, 56, 104, 200, 380, 724, 1380, 2628, 5008, 9540, 18176, 34628, 65972, 125688, 239456, 456204, 869144, 1655864, 3154696, 6010220, 11450468, 21815044, 41561284, 79181152, 150853252, 287400512, 547545732, 1043165604, 1987403816]

cp's OEIS Frontend

A275498 Number of n X 2 0..2 arrays with no element equal to any value at offset (-2,-1) (-2,0) or (-1,-1) and new values introduced in order 0..2.

Table of values

List of values