A240793 - cp's OEIS frontend

A240793 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 zero plus the sum of the elements antidiagonally to its northeast, modulo 4.

n	a(n)
1	3
2	4
3	5
4	10
5	14
6	24
7	53
8	70
9	140
10	237
11	396
12	730
13	1242
14	2166
15	3743
16	6547
17	11397
18	19760
19	34622
20	59868
21	104358
22	181794
23	315863
24	550264
25	957027
26	1665335
27	2897587
28	5042553
29	8774919
30	15266419
31	26569228
32	46226952
33	80439383
34	139977422
35	243558497

[3, 4, 5, 10, 14, 24, 53, 70, 140, 237, 396, 730, 1242, 2166, 3743, 6547, 11397, 19760, 34622, 59868, 104358, 181794, 315863, 550264, 957027, 1665335, 2897587, 5042553, 8774919, 15266419, 26569228, 46226952, 80439383, 139977422, 243558497]

cp's OEIS Frontend

A240793 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 zero plus the sum of the elements antidiagonally to its northeast, modulo 4.

Table of values

List of values