A253988 - OEIS

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A253988

Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock diagonal median plus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally

1

11872, 68176, 477856, 3678188, 25361960, 175815629, 1239374238, 8586595803, 59232122744, 407768029544, 2794432910156, 19078931185909, 129919184850744, 882244188523399, 5976100030885004, 40392042347028794, 272456477342231370

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Column 3 of A253993

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=2

..1..0..0..1..0....0..0..1..1..1....0..0..0..0..0....1..1..0..0..0

..1..0..0..1..0....1..0..1..0..1....0..0..1..1..0....1..0..1..1..1

..0..0..0..1..0....1..0..1..0..0....0..0..0..0..1....1..0..1..1..0

..0..0..0..0..1....1..1..0..0..1....0..1..1..1..1....0..0..1..1..0

CROSSREFS

Sequence in context: A249842 A251788 A194776 * A253995 A258905 A232673

Adjacent sequences: A253985 A253986 A253987 * A253989 A253990 A253991

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 21 2015

STATUS

approved