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A240257 Number of nX3 0..3 arrays with no element equal to one plus the sum of elements to its left or one plus the sum of elements above it or one plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4 1
16, 102, 707, 5484, 43200, 343959, 2750576, 22038291, 176729972, 1417804827, 11376450010, 91293254853, 732641545797, 5879698617773, 47187185316348, 378700529124397, 3039269539041872, 24391768139474983, 195757199474858916 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 3 of A240260
LINKS
EXAMPLE
Some solutions for n=5
..2..2..0....0..2..0....0..2..2....2..2..0....2..0..0....2..2..0....2..2..0
..2..2..2....2..0..0....0..0..0....2..2..0....2..0..2....0..2..2....0..2..0
..2..0..0....2..2..2....2..2..0....0..2..0....0..0..0....2..2..0....0..0..0
..0..2..0....0..0..0....2..2..2....2..2..3....2..0..2....0..2..0....0..2..2
..2..2..0....2..2..0....2..1..3....0..2..2....2..2..2....0..2..2....2..0..2
CROSSREFS
Sequence in context: A223016 A253390 A264281 * A199773 A245872 A304505
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 03 2014
STATUS
approved

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Last modified April 23 12:27 EDT 2024. Contains 371912 sequences. (Running on oeis4.)