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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A254737 Number of (n+2)X(2+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the central row and column minus the sum of the minimums of the diagonal and antidiagonal nondecreasing horizontally and vertically 1
 2848, 19782, 130554, 795666, 4613180, 26334567, 148992766, 835291656, 4658392738, 25877167367, 143353076996, 792328254848, 4372508061480, 24098933827502, 132699992555054, 730161877826513, 4015459447103366 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 2 of A254743 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 R. H. Hardin, Empirical recurrence of order 57 FORMULA Empirical recurrence of order 57 (see link above) EXAMPLE Some solutions for n=3 ..0..1..1..1....0..0..1..0....1..1..0..0....0..1..1..0....0..1..0..0 ..0..0..0..0....0..0..0..0....0..0..1..1....0..1..0..0....0..0..1..1 ..1..0..0..0....1..0..0..0....0..0..0..0....1..0..0..0....0..0..0..1 ..0..0..0..0....0..0..0..0....1..0..1..1....0..0..0..0....0..0..1..1 ..0..1..0..1....0..0..0..1....0..0..1..0....0..0..1..0....1..1..1..1 CROSSREFS Sequence in context: A317473 A257155 A257148 * A234416 A218597 A259296 Adjacent sequences: A254734 A254735 A254736 * A254738 A254739 A254740 KEYWORD nonn AUTHOR R. H. Hardin, Feb 06 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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified September 15 22:01 EDT 2024. Contains 375955 sequences. (Running on oeis4.)