A197274 - cp's OEIS frontend

A197274 Number of n X 2 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,0,1,1,1 for x=0,1,2,3,4.

n	a(n)
1	3
2	9
3	14
4	29
5	67
6	134
7	275
8	583
9	1210
10	2511
11	5245
12	10926
13	22745
14	47405
15	98774
16	205765
17	428731
18	893294
19	1861163
20	3877815
21	8079642
22	16834247
23	35074949
24	73080470
25	152266769
26	317255517
27	661018310
28	1377265789
29	2869604691
30	5978971062

[3, 9, 14, 29, 67, 134, 275, 583, 1210, 2511, 5245, 10926, 22745, 47405, 98774, 205765, 428731, 893294, 1861163, 3877815, 8079642, 16834247, 35074949, 73080470, 152266769, 317255517, 661018310, 1377265789, 2869604691, 5978971062]

cp's OEIS Frontend

A197274 Number of n X 2 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,0,1,1,1 for x=0,1,2,3,4.

Table of values

List of values