A280435 - cp's OEIS frontend

A280435 Number of nX3 0..1 arrays with no element equal to more than one of its horizontal and vertical neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.

n	a(n)
1	1
2	10
3	21
4	42
5	77
6	136
7	236
8	404
9	687
10	1162
11	1959
12	3294
13	5528
14	9262
15	15497
16	25898
17	43233
18	72100
19	120132
20	199992
21	332675
22	552970
23	918491
24	1524602
25	2529072
26	4192786
27	6946941
28	11503914
29	19040117
30	31497472
31	52080284
32	86073884
33	142192983

[1, 10, 21, 42, 77, 136, 236, 404, 687, 1162, 1959, 3294, 5528, 9262, 15497, 25898, 43233, 72100, 120132, 199992, 332675, 552970, 918491, 1524602, 2529072, 4192786, 6946941, 11503914, 19040117, 31497472, 52080284, 86073884, 142192983]

cp's OEIS Frontend

A280435 Number of nX3 0..1 arrays with no element equal to more than one of its horizontal and vertical neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.

Table of values

List of values