A239987 - cp's OEIS frontend

A239987 Number of 3 X n 0..3 arrays with no element equal to zero plus the sum of elements to its left or two plus the sum of the elements above it or one plus the sum of the elements diagonally to its northwest, modulo 4.

n	a(n)
1	3
2	6
3	13
4	22
5	38
6	65
7	107
8	169
9	257
10	378
11	540
12	752
13	1024
14	1367
15	1793
16	2315
17	2947
18	3704
19	4602
20	5658
21	6890
22	8317
23	9959
24	11837
25	13973
26	16390
27	19112
28	22164
29	25572
30	29363
31	33565
32	38207
33	43319
34	48932
35	55078
36	61790
37	69102
38	77049
39	85667
40	94993
41	105065

[3, 6, 13, 22, 38, 65, 107, 169, 257, 378, 540, 752, 1024, 1367, 1793, 2315, 2947, 3704, 4602, 5658, 6890, 8317, 9959, 11837, 13973, 16390, 19112, 22164, 25572, 29363, 33565, 38207, 43319, 48932, 55078, 61790, 69102, 77049, 85667, 94993, 105065]

cp's OEIS Frontend

A239987 Number of 3 X n 0..3 arrays with no element equal to zero plus the sum of elements to its left or two plus the sum of the elements above it or one plus the sum of the elements diagonally to its northwest, modulo 4.

Table of values

List of values