A222569 - cp's OEIS frontend

A222569 Number of n X 4 0..2 arrays with no more than floor(nX4/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..2 order.

n	a(n)
1	4
2	10
3	56
4	435
5	4790
6	50535
7	547563
8	5815939
9	63130202
10	676152734
11	7328771224
12	79083695286
13	857913193954
14	9302185273377
15	101073333908828
16	1099637763169027
17	11970412457540599
18	130557727722965457
19	1423911243991041430

[4, 10, 56, 435, 4790, 50535, 547563, 5815939, 63130202, 676152734, 7328771224, 79083695286, 857913193954, 9302185273377, 101073333908828, 1099637763169027, 11970412457540599, 130557727722965457, 1423911243991041430]

cp's OEIS Frontend

A222569 Number of n X 4 0..2 arrays with no more than floor(nX4/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..2 order.

Table of values

List of values