A241436 - cp's OEIS frontend

A241436 Number of 2Xn 0..3 arrays with no element equal to one plus the sum of elements to its left or one plus the sum of the elements above it or zero 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	3
2	5
3	10
4	21
5	45
6	88
7	181
8	378
9	710
10	1460
11	2973
12	5668
13	11567
14	23202
15	45182
16	91386
17	182056
18	358886
19	721278
20	1433814
21	2843343
22	5691577
23	11312714
24	22494505
25	44919750
26	89325211
27	177819368
28	354608529
29	705515901
30	1405063399
31	2799954077
32	5572860402

[3, 5, 10, 21, 45, 88, 181, 378, 710, 1460, 2973, 5668, 11567, 23202, 45182, 91386, 182056, 358886, 721278, 1433814, 2843343, 5691577, 11312714, 22494505, 44919750, 89325211, 177819368, 354608529, 705515901, 1405063399, 2799954077, 5572860402]

cp's OEIS Frontend

A241436 Number of 2Xn 0..3 arrays with no element equal to one plus the sum of elements to its left or one plus the sum of the elements above it or zero 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