A239852 - cp's OEIS frontend

A239852 Number of n X 2 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	2
2	3
3	5
4	4
5	5
6	5
7	6
8	10
9	11
10	15
11	16
12	21
13	26
14	32
15	41
16	48
17	62
18	74
19	94
20	115
21	142
22	177
23	216
24	271
25	331
26	413
27	508
28	629
29	779
30	960
31	1192
32	1468
33	1821
34	2247
35	2781
36	3439
37	4249
38	5260
39	6496
40	8041
41	9935
42	12290
43	15195
44	18786
45	23236
46	28721
47	35526
48	43916
49	54312
50	67152
51	83033

[2, 3, 5, 4, 5, 5, 6, 10, 11, 15, 16, 21, 26, 32, 41, 48, 62, 74, 94, 115, 142, 177, 216, 271, 331, 413, 508, 629, 779, 960, 1192, 1468, 1821, 2247, 2781, 3439, 4249, 5260, 6496, 8041, 9935, 12290, 15195, 18786, 23236, 28721, 35526, 43916, 54312, 67152, 83033]

cp's OEIS Frontend

A239852 Number of n X 2 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