A267670 Number of 5Xn 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.
12, 288, 1800, 18432, 80404, 624476, 2369260, 16599404, 58673768, 396192232, 1341344220, 8997486724, 29537306724, 199856740924, 639725846056, 4402373616416, 13773133899732, 96844636475844, 296410370293060
Offset: 1
Keywords
Examples
Some solutions for n=5 ..0..1..0..1..1....0..1..0..1..0....0..1..0..1..0....0..1..1..0..1 ..0..1..0..0..1....0..0..1..0..1....0..1..0..1..1....0..1..0..1..1 ..1..0..1..0..1....1..0..1..1..0....1..0..1..1..0....0..1..0..0..1 ..0..1..0..0..1....0..0..1..1..0....0..1..0..1..1....0..1..0..1..0 ..0..0..1..1..0....1..0..1..1..0....1..1..0..1..0....1..1..0..0..1
Links
- R. H. Hardin, Table of n, a(n) for n = 1..210
- R. H. Hardin, Empirical recurrence of order 96
Crossrefs
Cf. A267667.
Formula
Empirical recurrence of order 96 (see link above)
Comments