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A237483 Number of (n+1)X(2+1) 0..3 arrays with the maximum plus the minimum minus the lower median of every 2X2 subblock equal 1
1464, 15898, 180730, 2218016, 27849668, 361041844, 4724446414, 62643477220, 833223795952, 11142212389150, 149131165341728, 2000378927238696, 26837240769664704, 360375444728855618, 4839190850208680986 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A237488

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

R. H. Hardin, Empirical recurrence of order 88

FORMULA

Empirical recurrence of order 88 (see link above)

EXAMPLE

Some solutions for n=3

..0..1..1....2..0..1....2..3..1....0..3..3....2..1..3....0..0..0....0..1..3

..2..3..0....1..3..2....1..0..1....1..2..1....1..2..0....3..0..3....3..1..0

..1..2..1....0..2..1....2..3..2....2..1..2....2..3..1....3..0..2....0..1..3

..2..1..2....1..3..2....2..1..0....1..2..3....1..2..2....1..0..3....1..3..0

CROSSREFS

Sequence in context: A023074 A164647 A284887 * A280906 A321010 A278368

Adjacent sequences:  A237480 A237481 A237482 * A237484 A237485 A237486

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 08 2014

STATUS

approved

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Last modified May 27 14:37 EDT 2022. Contains 354105 sequences. (Running on oeis4.)