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

 

Logo

Please make a donation to keep the OEIS running. We are now in our 56th year. In the past year we added 10000 new sequences and reached almost 9000 citations (which often say "discovered thanks to the OEIS").
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A253960 Number of (n+2)X(7+2) 0..1 arrays with every 3X3 subblock diagonal median minus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally 1
11244672, 405335284, 18766879524, 842101547904, 37588952737932, 1719031661674233, 78151552269875720, 3549418694203062073, 161337272008147699916, 7335058496875930084581, 333362608254342109893112 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A253961

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..27

EXAMPLE

Some solutions for n=1

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

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

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

CROSSREFS

Sequence in context: A201253 A273879 A321506 * A253967 A253763 A331359

Adjacent sequences:  A253957 A253958 A253959 * A253961 A253962 A253963

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 20 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 November 27 04:07 EST 2020. Contains 338677 sequences. (Running on oeis4.)