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!)
A254771 Number of (n+2)X(4+2) 0..1 arrays with every 3X3 subblock sum of the two maximums of the central row and the central column and the two medians of the diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally 1
48168, 207006, 1667480, 14533460, 113507484, 914580497, 7597019270, 62541963004, 513132714629, 4230602003079, 34864204145608, 287126794557915, 2365368104280794, 19489875195992603, 160564821826177027 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A254775

LINKS

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

R. H. Hardin, Empirical recurrence of order 69

FORMULA

Empirical recurrence of order 69 (see link above)

EXAMPLE

Some solutions for n=1

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

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

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

CROSSREFS

Sequence in context: A252949 A203547 A156117 * A254778 A254724 A186592

Adjacent sequences:  A254768 A254769 A254770 * A254772 A254773 A254774

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 07 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 January 19 21:58 EST 2022. Contains 350466 sequences. (Running on oeis4.)