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A237134 Number of (n+1)X(n+1) 0..3 arrays with the maximum plus the upper median of every 2X2 subblock equal 1
256, 22960, 9999802, 50384979024, 1265341553110578, 228789901383673689174, 221397526252157619725259427, 1328440646465169308310698650263760, 45372102198987511081849578962073926845151 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A237142

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..10

EXAMPLE

Some solutions for n=2

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

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

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

CROSSREFS

Sequence in context: A251968 A017116 A206055 * A205948 A309827 A205019

Adjacent sequences:  A237131 A237132 A237133 * A237135 A237136 A237137

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 04 2014

STATUS

approved

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Last modified January 26 18:26 EST 2022. Contains 350599 sequences. (Running on oeis4.)