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A237923 Number of (n+1)X(2+1) 0..3 arrays with the maximum plus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one 1
1632, 15260, 142488, 1365710, 13009850, 123407764, 1173616996, 11179776830, 106365553324, 1011373253330, 9621735679054, 91557973350390, 871035775278764, 8285866329864686, 78828780864018398, 749973614481378428 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A237927

LINKS

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

R. H. Hardin, Empirical recurrence of order 93

FORMULA

Empirical recurrence of order 93 (see link above)

EXAMPLE

Some solutions for n=3

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

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

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

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

CROSSREFS

Sequence in context: A202985 A063891 A254849 * A297659 A219007 A072409

Adjacent sequences:  A237920 A237921 A237922 * A237924 A237925 A237926

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 15 2014

STATUS

approved

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Last modified September 26 23:44 EDT 2022. Contains 357051 sequences. (Running on oeis4.)