A185771 - cp's OEIS frontend

A185771 Number of (n+1) X 2 0..2 arrays with no 2 X 2 subblock sum equal to any horizontal or vertical neighbor 2 X 2 subblock sum.

n	a(n)
1	81
2	558
3	3844
4	26784
5	186624
6	1296000
7	9000000
8	62568000
9	434972736
10	3022785216
11	21006444096
12	146001569472
13	1014758051904
14	7052535822528
15	49014897132096
16	340658500222656
17	2367611084874816
18	16455017381102784
19	114363207176279616

[81, 558, 3844, 26784, 186624, 1296000, 9000000, 62568000, 434972736, 3022785216, 21006444096, 146001569472, 1014758051904, 7052535822528, 49014897132096, 340658500222656, 2367611084874816, 16455017381102784, 114363207176279616]

cp's OEIS Frontend

A185771 Number of (n+1) X 2 0..2 arrays with no 2 X 2 subblock sum equal to any horizontal or vertical neighbor 2 X 2 subblock sum.

Table of values

List of values