A234383 Number of (3+2) X (n+2) 0..2 arrays with no increasing sequence of length 3 vertically, diagonally downwards or antidiagonally downwards.

8280018, 1443868938, 254778511950, 45066201971526, 7967337301557900, 1408249830518808876, 248916833572419189846, 43998377041548170206362, 7777128016149133672736370, 1374678973555634257112544930, 242987132532024424000811741220, 42950210616486642419854640647344

Offset

1,1

Links

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

R. H. Hardin, Empirical recurrence of order 58

Formula

Empirical recurrence of order 58 (see link above).

Example

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

Crossrefs

Row 3 of A234380.

Sequence in context: A234049 A233484 A363792 * A192630 A379179 A098809

Adjacent sequences: A234380 A234381 A234382 * A234384 A234385 A234386

Keyword

nonn

Author

R. H. Hardin, Dec 25 2013

Extensions

Name corrected by Andrew Howroyd, Mar 20 2025

Status

approved