A240266 - cp's OEIS frontend

A240266 Number of n X 2 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of elements above it or one plus the sum of the elements diagonally to its northwest, modulo 4.

n	a(n)
1	4
2	7
3	14
4	36
5	72
6	170
7	411
8	879
9	2106
10	4874
11	10808
12	25648
13	58383
14	132428
15	310199
16	704308
17	1615735
18	3746472
19	8529529
20	19647966
21	45277950
22	103456016
23	238430432
24	547803553
25	1255188579
26	2890336834
27	6633676274
28	15225374578
29	35023723614

[4, 7, 14, 36, 72, 170, 411, 879, 2106, 4874, 10808, 25648, 58383, 132428, 310199, 704308, 1615735, 3746472, 8529529, 19647966, 45277950, 103456016, 238430432, 547803553, 1255188579, 2890336834, 6633676274, 15225374578, 35023723614]

cp's OEIS Frontend

A240266 Number of n X 2 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of elements above it or one plus the sum of the elements diagonally to its northwest, modulo 4.

Table of values

List of values