A240049 - cp's OEIS frontend

A240049 Number of 4Xn 0..3 arrays with no element equal to zero plus the sum of elements to its left or zero plus the sum of the elements above it or zero plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4.

n	a(n)
1	6
2	22
3	93
4	346
5	1110
6	5780
7	17297
8	57800
9	202995
10	643326
11	2233216
12	7442776
13	25047361
14	84213282
15	278643460
16	939079721
17	3094143301
18	10358660848
19	34579518631
20	114236046070
21	383085583978
22	1270523789559
23	4220562761492

[6, 22, 93, 346, 1110, 5780, 17297, 57800, 202995, 643326, 2233216, 7442776, 25047361, 84213282, 278643460, 939079721, 3094143301, 10358660848, 34579518631, 114236046070, 383085583978, 1270523789559, 4220562761492]

cp's OEIS Frontend

A240049 Number of 4Xn 0..3 arrays with no element equal to zero plus the sum of elements to its left or zero plus the sum of the elements above it or zero plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4.

Table of values

List of values