A187420 - cp's OEIS frontend

A187420 Number of (n+1)X3 0..2 arrays with every 2X2 subblock determinant equal to exactly one or two horizontal and vertical neighbor 2X2 subblock determinants.

n	a(n)
1	175
2	1969
3	6512
4	44512
5	319792
6	2142214
7	13328138
8	88129302
9	580578920
10	3802787570
11	24886205614
12	163501852210
13	1072581861748
14	7032866591748
15	46126761827268
16	302624532393770
17	1985178392452142
18	13021958891247156

[175, 1969, 6512, 44512, 319792, 2142214, 13328138, 88129302, 580578920, 3802787570, 24886205614, 163501852210, 1072581861748, 7032866591748, 46126761827268, 302624532393770, 1985178392452142, 13021958891247156]

cp's OEIS Frontend

A187420 Number of (n+1)X3 0..2 arrays with every 2X2 subblock determinant equal to exactly one or two horizontal and vertical neighbor 2X2 subblock determinants.

Table of values

List of values