A241400 - cp's OEIS frontend

A241400 Number of 4Xn 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 zero plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4.

n	a(n)
1	7
2	28
3	97
4	480
5	1657
6	8697
7	31654
8	92204
9	397955
10	1440202
11	5015494
12	20114505
13	70074714
14	258768285
15	999131434
16	3471187281
17	13084431710
18	49495338616
19	176036491899
20	662243630484
21	2450968267032
22	8911921597230
23	33375847400152

[7, 28, 97, 480, 1657, 8697, 31654, 92204, 397955, 1440202, 5015494, 20114505, 70074714, 258768285, 999131434, 3471187281, 13084431710, 49495338616, 176036491899, 662243630484, 2450968267032, 8911921597230, 33375847400152]

cp's OEIS Frontend

A241400 Number of 4Xn 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 zero plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4.

Table of values

List of values