login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A278381 Number of nX4 0..1 arrays with rows and columns in lexicographic nondecreasing order but with exactly three mistakes. 2
0, 40, 1220, 23640, 368421, 4703562, 50473056, 474255829, 4047341159, 32112086692, 239321493757, 1678998378973, 11080464577870, 68753466828933, 401430915176013, 2209957957528646, 11503598362204972, 56799460197673429 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Column 4 of A278385.
LINKS
FORMULA
Empirical polynomial of degree 63 (see link above)
EXAMPLE
Some solutions for n=4
..1..0..0..0. .1..1..1..0. .1..1..1..0. .1..1..0..1. .1..0..1..0
..1..1..0..1. .1..0..0..1. .1..1..1..0. .1..0..1..1. .1..1..1..1
..0..1..1..1. .1..0..1..1. .0..1..0..0. .1..1..1..0. .0..1..0..1
..1..1..0..0. .1..0..1..1. .1..0..1..1. .1..1..1..1. .1..0..1..0
CROSSREFS
Cf. A278385.
Sequence in context: A331350 A061650 A006101 * A251202 A239189 A188253
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 20 2016
STATUS
approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified March 29 05:43 EDT 2024. Contains 371264 sequences. (Running on oeis4.)