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 A203506 T(n,k)=Number of nXk 0..6 arrays with every nonzero element less than or equal to some NW, E or S neighbor 8
 1, 1, 1, 1, 49, 1, 1, 1554, 1554, 1, 1, 29701, 296814, 29701, 1, 1, 481122, 31795165, 31795165, 481122, 1, 1, 7959529, 3024812086, 17549687172, 3024812086, 7959529, 1, 1, 138035591, 312327861320, 8828365834694, 8828365834694, 312327861320 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,5 COMMENTS Table starts .1.........1..............1...................1........................1 .1........49...........1554...............29701...................481122 .1......1554.........296814............31795165...............3024812086 .1.....29701.......31795165.........17549687172............8828365834694 .1....481122.....3024812086.......8828365834694........22732800433168401 .1...7959529...312327861320....4878810545594780.....63659189467084692929 .1.138035591.33576251318216.2766231303166191786.184087747131825069346215 LINKS R. H. Hardin, Table of n, a(n) for n = 1..84 EXAMPLE Some solutions for n=5 k=3 ..4..6..0....2..5..1....0..0..4....2..0..1....5..5..1....1..3..1....1..1..3 ..5..6..6....0..5..6....2..4..4....2..3..1....0..5..1....1..5..1....6..6..3 ..1..5..1....2..4..6....0..4..4....6..4..4....2..2..3....3..5..3....1..6..4 ..5..1..0....6..6..6....5..1..1....6..2..4....6..4..0....4..5..3....4..2..1 ..5..5..1....5..5..6....5..5..0....6..6..0....6..6..3....1..5..5....4..4..0 CROSSREFS Sequence in context: A214953 A005071 A174696 * A254617 A012120 A278107 Adjacent sequences: A203503 A203504 A203505 * A203507 A203508 A203509 KEYWORD nonn,tabl AUTHOR R. H. Hardin Jan 02 2012 STATUS approved

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Last modified September 26 12:31 EDT 2023. Contains 365657 sequences. (Running on oeis4.)