A267753 Number of 5Xn arrays containing n copies of 0..5-1 with every element equal to or 1 greater than any north neighbor modulo 5 and the upper left element equal to 0.
1, 11, 313, 13451, 679735, 37668275, 2218059985, 136270559675, 8639673619975, 561345949073501, 37199029884576055, 2505536459782428275, 171083113958746029535, 11818808909940579018035, 824717389713663500108473
Offset: 1
Keywords
Examples
Some solutions for n=4 ..0..0..2..4....0..0..2..4....0..4..2..1....0..2..1..1....0..4..2..3 ..1..0..3..4....1..1..3..0....1..4..3..1....0..3..2..1....0..0..2..4 ..2..1..3..0....1..2..4..0....1..0..3..2....1..4..3..2....1..1..3..4 ..2..2..4..1....2..3..4..1....2..0..3..3....2..4..4..3....2..1..3..4 ..3..3..4..1....3..3..4..2....2..0..4..4....3..0..0..4....2..1..3..0
Links
- R. H. Hardin, Table of n, a(n) for n = 1..16
Crossrefs
Cf. A267751.
Comments