A241056 - cp's OEIS frontend

A241056 Number of 3Xn 0..3 arrays with no element equal to one 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	4
2	4
3	3
4	24
5	60
6	93
7	297
8	507
9	1264
10	2850
11	6180
12	15453
13	33463
14	81394
15	185671
16	428769
17	1005669
18	2301449
19	5384371
20	12403537
21	28828484
22	66828140
23	154614938
24	359224400
25	831157978
26	1928175521
27	4468984943
28	10355201708
29	24011010277
30	55638167866

[4, 4, 3, 24, 60, 93, 297, 507, 1264, 2850, 6180, 15453, 33463, 81394, 185671, 428769, 1005669, 2301449, 5384371, 12403537, 28828484, 66828140, 154614938, 359224400, 831157978, 1928175521, 4468984943, 10355201708, 24011010277, 55638167866]

cp's OEIS Frontend

A241056 Number of 3Xn 0..3 arrays with no element equal to one 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