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A236981 Number of (n+1)X(2+1) 0..3 arrays with the maximum plus the upper median plus the lower median of every 2X2 subblock equal 1
888, 3852, 16212, 85064, 429108, 2380742, 12891190, 73033832, 407662600, 2333365070, 13220203386, 76129805278, 435052159304, 2515577967734, 14458394715076, 83858270702244, 484060453024772, 2814490812097076 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A236987

LINKS

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

R. H. Hardin, Empirical recurrence of order 92

FORMULA

Empirical recurrence of order 92 (see link above)

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A202446 A043523 A066270 * A203724 A006915 A178270

Adjacent sequences:  A236978 A236979 A236980 * A236982 A236983 A236984

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 02 2014

STATUS

approved

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Last modified February 20 01:06 EST 2018. Contains 299357 sequences. (Running on oeis4.)