A241308 - cp's OEIS frontend

A241308 Number of 3Xn 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 zero plus the sum of the elements diagonally to its northwest or zero plus the sum of the elements antidiagonally to its northeast, modulo 4.

n	a(n)
1	11
2	6
3	37
4	74
5	186
6	646
7	1278
8	3418
9	9113
10	21457
11	60124
12	137479
13	352570
14	903787
15	2152775
16	5701225
17	13891880
18	34569079
19	88272180
20	217502063
21	550658503
22	1377693048
23	3441000964
24	8635401747
25	21620210682
26	54285004854
27	135701054466

[11, 6, 37, 74, 186, 646, 1278, 3418, 9113, 21457, 60124, 137479, 352570, 903787, 2152775, 5701225, 13891880, 34569079, 88272180, 217502063, 550658503, 1377693048, 3441000964, 8635401747, 21620210682, 54285004854, 135701054466]

cp's OEIS Frontend

A241308 Number of 3Xn 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 zero plus the sum of the elements diagonally to its northwest or zero plus the sum of the elements antidiagonally to its northeast, modulo 4.

Table of values

List of values