A240461 - cp's OEIS frontend

A240461 Number of 2 X n 0..3 arrays with no element equal to one plus the sum of elements to its left or three 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	5
2	21
3	89
4	375
5	1583
6	6685
7	28241
8	119319
9	504151
10	2130189
11	9000729
12	38030999
13	160693343
14	678981661
15	2868918401
16	12122113399
17	51219871687
18	216420616013
19	914447487881
20	3863838035639
21	16325972308111
22	68982542575773

[5, 21, 89, 375, 1583, 6685, 28241, 119319, 504151, 2130189, 9000729, 38030999, 160693343, 678981661, 2868918401, 12122113399, 51219871687, 216420616013, 914447487881, 3863838035639, 16325972308111, 68982542575773]

cp's OEIS Frontend

A240461 Number of 2 X n 0..3 arrays with no element equal to one plus the sum of elements to its left or three 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