login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A254987 Number of (n+2)X(6+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the diagonal and antidiagonal minus the sum of the minimums of the central row and column nondecreasing horizontally and vertically 1
639228, 6027037, 86136256, 1365133989, 20587404155, 319124131437, 5043778832638, 78770412758751, 1231980088879281, 19349677731583522, 303689465790003843, 4763548444287970719, 74773298354655308950 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A254989

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..126

EXAMPLE

Some solutions for n=1

..0..0..0..0..1..0..0..0....0..0..0..0..0..1..0..0....0..0..0..0..0..0..1..0

..1..0..1..0..0..1..1..0....1..1..1..0..0..1..1..1....0..0..0..1..0..1..1..1

..1..0..0..0..0..1..0..0....1..0..0..0..0..1..1..0....1..1..0..1..0..1..0..1

CROSSREFS

Cf. A254989

Sequence in context: A113951 A257194 A257187 * A236996 A250884 A190574

Adjacent sequences:  A254984 A254985 A254986 * A254988 A254989 A254990

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 11 2015

STATUS

approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 28 11:09 EDT 2021. Contains 346326 sequences. (Running on oeis4.)