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A278622
Number of nX3 0..2 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly one mistake.
1
16, 357, 4754, 49503, 439446, 3438414, 24103803, 153073965, 888863183, 4758719096, 23665023516, 110046094356, 481337375925, 1990600963219, 7819169497216, 29290369365213, 105007107699726, 361416768054859
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OFFSET
1,1
COMMENTS
Column 3 of
A278627
.
LINKS
R. H. Hardin,
Table of n, a(n) for n = 1..210
R. H. Hardin,
Empirical polynomial of degree 43
FORMULA
Empirical polynomial of degree 43 (see link above)
EXAMPLE
Some solutions for n=4
..1..1..0. .2..2..0. .2..1..0. .0..2..1. .2..1..0. .2..0..0. .1..2..0
..0..0..2. .1..1..0. .0..0..0. .2..0..1. .0..1..2. .2..1..0. .2..0..0
..2..0..0. .2..0..1. .0..1..0. .2..2..2. .0..2..0. .0..0..2. .2..1..1
..2..0..1. .2..2..1. .2..0..2. .2..2..2. .2..0..2. .1..2..2. .2..2..0
CROSSREFS
Cf.
A278627
.
Sequence in context:
A223032
A171680
A208706
*
A155122
A094101
A034673
Adjacent sequences:
A278619
A278620
A278621
*
A278623
A278624
A278625
KEYWORD
nonn
AUTHOR
R. H. Hardin
, Nov 24 2016
STATUS
approved
