A280439 - cp's OEIS frontend

A280439 Number of n X 7 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	20
2	120
3	236
4	386
5	574
6	834
7	1211
8	1784
9	2684
10	4128
11	6478
12	10334
13	16693
14	27208
15	44620
16	73470
17	121278
18	200490
19	331695
20	548936
21	908476
22	1503260
23	2486766
24	4112326
25	6797929
26	11232984
27	18554156
28	30634874
29	50561854
30	83419218
31	137578403

[20, 120, 236, 386, 574, 834, 1211, 1784, 2684, 4128, 6478, 10334, 16693, 27208, 44620, 73470, 121278, 200490, 331695, 548936, 908476, 1503260, 2486766, 4112326, 6797929, 11232984, 18554156, 30634874, 50561854, 83419218, 137578403]

cp's OEIS Frontend

A280439 Number of n X 7 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