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A251487 Number of (n+1)X(4+1) 0..3 arrays with no 2X2 subblock having the sum of its diagonal elements less than the minimum of its antidiagonal elements 1
740096, 541815424, 396684056960, 290403118046224, 212595602301764864, 155634922739125247648, 113935706529820385852096, 83408950603225147662340176, 61061218725064232993811630272 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A251491

LINKS

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

R. H. Hardin, Empirical recurrence of order 48

FORMULA

Empirical recurrence of order 48 (see link above)

EXAMPLE

Some solutions for n=1

..0..0..1..0..2....0..2..3..0..0....2..0..1..0..3....3..0..0..3..0

..1..2..2..1..2....0..2..0..2..0....0..3..2..1..1....0..3..2..2..1

CROSSREFS

Sequence in context: A107447 A184504 A249317 * A227905 A282407 A147707

Adjacent sequences:  A251484 A251485 A251486 * A251488 A251489 A251490

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 03 2014

STATUS

approved

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Last modified January 16 05:22 EST 2022. Contains 350374 sequences. (Running on oeis4.)