A234193 Number of (n+2)X(3+2) 0..3 arrays with no increasing sequence of length 3 horizontally, diagonally downwards or antidiagonally downwards.

419125848, 244346936321, 138268664434880, 77982317263392032, 43876333157141621192, 24677029734327048142633, 13875767412104735555136424, 7801937784020534863813964416, 4386714890323535267228362223256

Offset

1,1

Comments

Column 3 of A234196

Links

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

Example

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

Crossrefs

Sequence in context: A384516 A387681 A186795 * A166024 A234396 A017408

Adjacent sequences: A234190 A234191 A234192 * A234194 A234195 A234196

Keyword

nonn

Author

R. H. Hardin, Dec 21 2013

Status

approved