A239158 Number of (5+1)X(n+1) 0..3 arrays with no element equal to all horizontal neighbors or unequal to all vertical neighbors, and new values 0..3 introduced in row major order.
96, 2778, 209839, 12844591, 821135900, 52019283568, 3301711870920, 209479341898544, 13291665794245067, 843354268309287289, 53510901660533324714, 3395268764228553206688, 215429967962178289895220
Offset: 1
Keywords
Examples
Some solutions for n=3 ..0..1..1..2....0..1..0..1....0..1..1..2....0..1..1..0....0..1..0..2 ..0..1..1..2....0..1..0..1....0..1..1..2....0..1..1..0....0..1..0..2 ..0..1..1..0....0..1..2..3....1..0..3..2....2..3..1..0....2..0..0..2 ..2..1..1..0....0..1..2..3....1..0..3..0....2..3..1..0....2..0..0..2 ..2..0..2..3....2..0..1..3....2..3..3..0....0..3..1..2....2..3..3..2 ..2..0..2..3....2..0..1..3....2..3..3..0....0..3..1..2....2..3..3..2
Links
- R. H. Hardin, Table of n, a(n) for n = 1..210
- R. H. Hardin, Empirical recurrence of order 57
Formula
Empirical recurrence of order 57 (see link above)
Comments