A241250 - cp's OEIS frontend

A241250 Number of nX3 0..3 arrays with no element equal to one plus the sum of elements to its left or zero plus the sum of elements above it or one 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	4
2	4
3	13
4	47
5	174
6	606
7	2111
8	6647
9	21752
10	70595
11	229009
12	744946
13	2418238
14	7843143
15	25449403
16	82556576
17	267788667
18	868709237
19	2817909735
20	9140802924
21	29651305001
22	96183371668
23	311999852696
24	1012067748968
25	3282944840574
26	10649213948821

[4, 4, 13, 47, 174, 606, 2111, 6647, 21752, 70595, 229009, 744946, 2418238, 7843143, 25449403, 82556576, 267788667, 868709237, 2817909735, 9140802924, 29651305001, 96183371668, 311999852696, 1012067748968, 3282944840574, 10649213948821]

cp's OEIS Frontend

A241250 Number of nX3 0..3 arrays with no element equal to one plus the sum of elements to its left or zero plus the sum of elements above it or one 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