A251397 Number of (n+1)X(3+1) 0..3 arrays with no 2X2 subblock having the sum of its diagonal elements less than the absolute difference of its antidiagonal elements

45542, 8558283, 1606734480, 301644677965, 56631282128854, 10632092711682548, 1996093452861010528, 374751133066799206981, 70356632879370619403610, 13208914836753861239922613, 2479871817922719729400520215

Offset

1,1

Comments

Column 3 of A251402

Links

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

R. H. Hardin, Empirical recurrence of order 81

Formula

Empirical recurrence of order 81 (see link above)

Example

Some solutions for n=1
..3..0..0..3....3..2..3..0....1..3..0..1....2..2..3..1....3..3..2..3
..1..1..1..2....1..3..2..0....2..1..1..3....0..1..2..0....1..3..2..2

Crossrefs

Sequence in context: A269900 A287250 A253045 * A184473 A157653 A202915

Adjacent sequences: A251394 A251395 A251396 * A251398 A251399 A251400

Keyword

nonn

Author

R. H. Hardin, Dec 02 2014

Status

approved