A240193 - cp's OEIS frontend

A240193 Number of 3 X n 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of the elements above it or three plus the sum of the elements diagonally to its northwest, modulo 4.

n	a(n)
1	3
2	12
3	37
4	129
5	478
6	1908
7	7868
8	32888
9	138292
10	583040
11	2461028
12	10393720
13	43907108
14	185502448
15	783769556
16	3311604104
17	13992449972
18	59122342816
19	249810507844
20	1055529401752
21	4459952527044
22	18844744947024
23	79625166220340

[3, 12, 37, 129, 478, 1908, 7868, 32888, 138292, 583040, 2461028, 10393720, 43907108, 185502448, 783769556, 3311604104, 13992449972, 59122342816, 249810507844, 1055529401752, 4459952527044, 18844744947024, 79625166220340]

cp's OEIS Frontend

A240193 Number of 3 X n 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of the elements above it or three plus the sum of the elements diagonally to its northwest, modulo 4.

Table of values

List of values