A265375 Number of 5Xn arrays containing n copies of 0..5-1 with no equal horizontal, vertical or antidiagonal neighbors and new values introduced sequentially from 0.
1, 99, 4954, 363850, 25964546, 2006263350, 159927435847, 13175135914848, 1111064939631727, 95607791613443343, 8362857163936394397
Offset: 1
Keywords
Examples
Some solutions for n=3 ..0..1..2....0..1..0....0..1..2....0..1..2....0..1..0....0..1..2....0..1..2 ..3..0..3....2..3..4....3..4..3....3..4..3....2..3..4....3..0..4....2..3..4 ..2..4..1....1..2..3....1..0..4....1..2..4....4..2..3....1..2..1....1..2..0 ..0..3..4....4..0..2....2..3..2....0..1..0....1..0..2....3..4..0....3..1..4 ..4..2..1....1..3..4....1..0..4....2..4..3....3..1..4....2..3..4....4..0..3
Crossrefs
Cf. A265373.
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