A267668 - cp's OEIS frontend

A267668 Number of 3Xn 0..1 arrays with every repeated value in every row unequal to the previous repeated value, and in every column equal to the previous repeated value, and new values introduced in row-major sequential order.

n	a(n)
1	4
2	32
3	108
4	500
5	1372
6	5324
7	13500
8	48668
9	119164
10	415292
11	1000188
12	3429500
13	8193532
14	27871484
15	66325500
16	224727548
17	533731324
18	1804870652
19	4282396668
20	14467221500
21	34309431292
22	115850907644
23	274676629500
24	927260024828

[4, 32, 108, 500, 1372, 5324, 13500, 48668, 119164, 415292, 1000188, 3429500, 8193532, 27871484, 66325500, 224727548, 533731324, 1804870652, 4282396668, 14467221500, 34309431292, 115850907644, 274676629500, 927260024828]

cp's OEIS Frontend

A267668 Number of 3Xn 0..1 arrays with every repeated value in every row unequal to the previous repeated value, and in every column equal to the previous repeated value, and new values introduced in row-major sequential order.

Table of values

List of values