A239861 - cp's OEIS frontend

A239861 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 one 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	4
3	84
4	203
5	1114
6	3463
7	9963
8	71695
9	219708
10	889871
11	4682227
12	14101348
13	56490669
14	272270300
15	908846318
16	3737847138
17	17250775307
18	59577644920
19	244962530289
20	1088932223860
21	3891762853661
22	15991497390003
23	68807314247286

[6, 4, 84, 203, 1114, 3463, 9963, 71695, 219708, 889871, 4682227, 14101348, 56490669, 272270300, 908846318, 3737847138, 17250775307, 59577644920, 244962530289, 1088932223860, 3891762853661, 15991497390003, 68807314247286]

cp's OEIS Frontend

A239861 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 one 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