A241357 - cp's OEIS frontend

A241357 Number of 2Xn 0..3 arrays with no element equal to zero plus the sum of elements to its left or one 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	3
2	3
3	9
4	17
5	23
6	53
7	103
8	160
9	344
10	643
11	1059
12	2196
13	4039
14	6930
15	13970
16	25512
17	45059
18	88830
19	161841
20	291573
21	565051
22	1029968
23	1879844
24	3596548
25	6568902
26	12087395
27	22908471
28	41950860
29	77573588
30	146021963
31	268115989
32	497179651
33	931373038

[3, 3, 9, 17, 23, 53, 103, 160, 344, 643, 1059, 2196, 4039, 6930, 13970, 25512, 45059, 88830, 161841, 291573, 565051, 1029968, 1879844, 3596548, 6568902, 12087395, 22908471, 41950860, 77573588, 146021963, 268115989, 497179651, 931373038]

cp's OEIS Frontend

A241357 Number of 2Xn 0..3 arrays with no element equal to zero plus the sum of elements to its left or one 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