A241256 - cp's OEIS frontend

A241256 Number of 2 X n 0..3 arrays with no element equal to one plus the sum of elements to its left or zero plus the sum of the elements above it or one 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	2
2	5
3	4
4	10
5	12
6	22
7	41
8	59
9	120
10	171
11	306
12	494
13	784
14	1345
15	2112
16	3547
17	5782
18	9402
19	15643
20	25307
21	41868
22	68465
23	112078
24	184535
25	301346
26	495580
27	811726
28	1330658
29	2184497
30	3577622
31	5872217
32	9625155
33	15783147
34	25889388
35	42437724
36	69611469
37	114132047

[2, 5, 4, 10, 12, 22, 41, 59, 120, 171, 306, 494, 784, 1345, 2112, 3547, 5782, 9402, 15643, 25307, 41868, 68465, 112078, 184535, 301346, 495580, 811726, 1330658, 2184497, 3577622, 5872217, 9625155, 15783147, 25889388, 42437724, 69611469, 114132047]

cp's OEIS Frontend

A241256 Number of 2 X n 0..3 arrays with no element equal to one plus the sum of elements to its left or zero plus the sum of the elements above it or one 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