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 A241261 Number of 7 X n 0..3 arrays with no element equal to one plus the sum of elements to its left or zero plus the sum of the elements above it or one plus the sum of the elements diagonally to its northwest or zero plus the sum of the elements antidiagonally to its northeast, modulo 4. 0
 20, 488, 2111, 13328, 225191, 1558957, 13138271, 205823368, 1596727720, 16865140873 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row 7 of A241255. LINKS Table of n, a(n) for n=1..10. EXAMPLE Some solutions for n=3 ..3..3..2....3..3..2....2..2..3....3..3..2....3..3..2....3..3..2....3..3..2 ..2..1..1....2..1..1....0..0..2....2..1..1....2..1..3....2..1..3....2..1..3 ..2..2..2....2..2..2....0..0..2....0..2..2....2..1..3....2..2..3....2..1..3 ..2..1..3....0..0..2....3..3..2....0..3..3....2..2..3....0..0..3....2..0..1 ..2..1..1....0..0..2....0..3..3....2..2..3....2..2..2....2..0..2....0..0..2 ..2..2..2....0..3..3....0..2..1....2..1..1....2..0..2....0..0..2....0..3..1 ..2..0..2....2..2..3....3..3..2....3..2..1....0..0..2....0..0..2....3..2..3 CROSSREFS Cf. A241255. Sequence in context: A159753 A252975 A000827 * A118552 A270578 A255492 Adjacent sequences: A241258 A241259 A241260 * A241262 A241263 A241264 KEYWORD nonn AUTHOR R. H. Hardin, Apr 18 2014 STATUS approved

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Last modified February 29 19:20 EST 2024. Contains 370428 sequences. (Running on oeis4.)