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!)
A257192 Number of (4+2)X(n+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, vertically and ne-to-sw antidiagonally 1
39891, 213631, 1661786, 12941212, 106574293, 916707473, 7875023930, 66916972975, 571865228504, 4885833171477, 41691336304950, 355572944704403, 3034273391475241, 25884761299109748, 220809323036102848 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 4 of A257189

LINKS

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

EXAMPLE

Some solutions for n=1

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

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

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

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

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

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

CROSSREFS

Cf. A257189

Sequence in context: A234920 A116220 A103809 * A257185 A254985 A210386

Adjacent sequences:  A257189 A257190 A257191 * A257193 A257194 A257195

KEYWORD

nonn

AUTHOR

R. H. Hardin, Apr 17 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 June 15 07:36 EDT 2021. Contains 345043 sequences. (Running on oeis4.)