The On-Line Encyclopedia of Integer Sequences (OEIS)

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A253874

Number of (4+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal maximum minus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally
(history; published version)

#4 by R. H. Hardin at Sat Jan 17 09:48:15 EST 2015

STATUS

editing

approved

#3 by R. H. Hardin at Sat Jan 17 09:48:11 EST 2015

LINKS

R. H. Hardin, <a href="/A253874/b253874.txt">Table of n, a(n) for n = 1..210</a>

R. H. Hardin, <a href="/A253874/a253874.txt">Empirical recurrence of order 86</a>

#2 by R. H. Hardin at Sat Jan 17 09:47:35 EST 2015

NAME

allocated for R. H. Hardin

Number of (4+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal maximum minus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally

DATA

119040, 2589968, 50414592, 1052857184, 20975776000, 424261181216, 8415694011136, 167533350155040, 3315015958304000, 65750261230687264, 1301328247318549760, 25772170438510291232, 509844817010765307136

OFFSET

1,1

COMMENTS

Row 4 of A253871

FORMULA

Empirical recurrence of order 86 (see link above)

EXAMPLE

Some solutions for n=1

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

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

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

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

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

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

KEYWORD

allocated

nonn

AUTHOR

R. H. Hardin, Jan 17 2015

STATUS

approved

editing

#1 by R. H. Hardin at Sat Jan 17 09:38:33 EST 2015

NAME

allocated for R. H. Hardin

KEYWORD

allocated

STATUS

approved