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A251447
Number of (n+1) X (4+1) 0..2 arrays with no 2 X 2 subblock having the minimum of its diagonal elements less than the absolute difference of its antidiagonal elements.
1
6505, 295339, 14434472, 711649307, 35114707166, 1733325153538, 85556587695052, 4223166671228639, 208458935686468001, 10289725682300720114, 507910087570520572800, 25070902359432483734308, 1237522406240832903706833
OFFSET
1,1
COMMENTS
Column 4 of A251451.
FORMULA
Empirical recurrence of order 88 (see link above).
EXAMPLE
Some solutions for n=1
..1..1..0..2..2....0..2..2..0..2....0..2..1..2..0....1..1..0..2..1
..0..1..2..2..2....2..2..0..2..0....2..0..1..1..1....0..1..2..0..2
CROSSREFS
Cf. A251451.
Sequence in context: A049529 A284102 A338951 * A156416 A156418 A258521
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 02 2014
STATUS
approved