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A251006 Number of (n+1)X(4+1) 0..2 arrays with no 2X2 subblock having its maximum diagonal element less than the absolute difference of its antidiagonal elements 1
31456, 4434257, 623999793, 87861924805, 12371981931569, 1742128826665123, 245313779556192507, 34543306613978027778, 4864137868972651779283, 684932598992197164031725, 96447238828788270436907235 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A251010

LINKS

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

R. H. Hardin, Empirical recurrence of order 87

FORMULA

Empirical recurrence of order 87 (see link above)

EXAMPLE

Some solutions for n=1

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

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

CROSSREFS

Sequence in context: A277171 A258577 A303531 * A113846 A321054 A234205

Adjacent sequences:  A251003 A251004 A251005 * A251007 A251008 A251009

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 29 2014

STATUS

approved

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Last modified August 14 02:40 EDT 2022. Contains 356109 sequences. (Running on oeis4.)