A222283 - cp's OEIS frontend

A222283 Number of nX1 0..1 arrays with exactly floor(nX1/2) elements unequal to at least one horizontal or vertical neighbor, with new values introduced in row major 0..1 order.

n	a(n)
1	1
2	0
3	0
4	3
5	4
6	4
7	5
8	20
9	27
10	48
11	63
12	175
13	236
14	512
15	684
16	1719
17	2320
18	5400
19	7271
20	17776
21	24036
22	57420
23	77636
24	188656
25	255591
26	617176
27	836595
28	2033175
29	2759184
30	6697744
31	9094949
32	22139780
33	30086955
34	73262232
35	99615081
36	242931321
37	330503120

[1, 0, 0, 3, 4, 4, 5, 20, 27, 48, 63, 175, 236, 512, 684, 1719, 2320, 5400, 7271, 17776, 24036, 57420, 77636, 188656, 255591, 617176, 836595, 2033175, 2759184, 6697744, 9094949, 22139780, 30086955, 73262232, 99615081, 242931321, 330503120]

cp's OEIS Frontend

A222283 Number of nX1 0..1 arrays with exactly floor(nX1/2) elements unequal to at least one horizontal or vertical neighbor, with new values introduced in row major 0..1 order.

Table of values

List of values