A241309 - cp's OEIS frontend

A241309 Number of 4Xn 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	25
2	12
3	116
4	330
5	1462
6	5757
7	22343
8	79043
9	304799
10	1330380
11	4460064
12	16854505
13	67201703
14	234900475
15	920572773
16	3459723044
17	12626410604
18	48658166127
19	178994028939
20	683367868924
21	2559363759045
22	9527974589307
23	36279708405734

[25, 12, 116, 330, 1462, 5757, 22343, 79043, 304799, 1330380, 4460064, 16854505, 67201703, 234900475, 920572773, 3459723044, 12626410604, 48658166127, 178994028939, 683367868924, 2559363759045, 9527974589307, 36279708405734]

cp's OEIS Frontend

A241309 Number of 4Xn 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