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A236281 Number of (n+1)X(4+1) 0..2 arrays with 2X2 subblock sum of squares lexicographically nondecreasing rowwise and columnwise 1
9504, 901317, 134940646, 13055877546, 1257559565027, 86958471603770, 5933159964415314, 317203951128077296, 16807249984788190582, 735417478953714936519, 31983707948933341383450, 1188292593572981570300838 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A236282

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..19

EXAMPLE

Some solutions for n=1

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

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

CROSSREFS

Sequence in context: A291209 A235424 A235420 * A282228 A084687 A086083

Adjacent sequences:  A236278 A236279 A236280 * A236282 A236283 A236284

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 21 2014

STATUS

approved

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Last modified March 28 07:59 EDT 2020. Contains 333079 sequences. (Running on oeis4.)