A239853 - cp's OEIS frontend

A239853 Number of nX3 0..3 arrays with no element equal to zero 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 one plus the sum of the elements antidiagonally to its northeast, modulo 4.

n	a(n)
1	4
2	9
3	44
4	84
5	130
6	343
7	685
8	1704
9	3977
10	7958
11	18574
12	40388
13	86314
14	203202
15	433430
16	967411
17	2205109
18	4735287
19	10746065
20	23937983
21	52281965
22	118605335
23	261244402
24	578751600
25	1302168082
26	2864205270
27	6395152778
28	14272351652
29	31509181522

[4, 9, 44, 84, 130, 343, 685, 1704, 3977, 7958, 18574, 40388, 86314, 203202, 433430, 967411, 2205109, 4735287, 10746065, 23937983, 52281965, 118605335, 261244402, 578751600, 1302168082, 2864205270, 6395152778, 14272351652, 31509181522]

cp's OEIS Frontend

A239853 Number of nX3 0..3 arrays with no element equal to zero 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 one plus the sum of the elements antidiagonally to its northeast, modulo 4.

Table of values

List of values