A241302 - cp's OEIS frontend

A241302 Number of nX3 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of 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	4
2	15
3	37
4	116
5	304
6	869
7	2398
8	6813
9	18782
10	53067
11	148098
12	418537
13	1170103
14	3295099
15	9238212
16	25977693
17	72895582
18	204839547
19	575103785
20	1615442306
21	4536454530
22	12740816702
23	35781379670
24	100486564040
25	282214599565
26	792544916224

[4, 15, 37, 116, 304, 869, 2398, 6813, 18782, 53067, 148098, 418537, 1170103, 3295099, 9238212, 25977693, 72895582, 204839547, 575103785, 1615442306, 4536454530, 12740816702, 35781379670, 100486564040, 282214599565, 792544916224]

cp's OEIS Frontend

A241302 Number of nX3 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of 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