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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A253343 Number of (n+1)X(n+1) 0..1 arrays with every 2X2 subblock diagonal maximum minus antidiagonal maximum nondecreasing horizontally, vertically and ne-to-sw antidiagonally 1
 16, 173, 4800, 305872, 44555528, 15101198444, 11626813328444, 20721971614675948, 84309722535540935020, 790037357585204417117612, 16954849455945229046581221580, 836098119050722296202025294716588 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A253350 LINKS R. H. Hardin, Table of n, a(n) for n = 1..15 EXAMPLE Some solutions for n=3 ..1..0..1..0....0..1..0..1....0..0..0..1....1..1..1..1....1..1..1..0 ..1..1..1..1....0..1..1..1....1..1..1..1....0..1..1..1....1..0..1..1 ..1..1..1..1....0..1..0..0....0..1..1..0....0..1..1..1....1..1..1..0 ..1..0..0..1....1..1..0..1....1..1..0..0....1..1..1..1....0..0..1..1 CROSSREFS Sequence in context: A018209 A021174 A021374 * A215687 A187720 A017931 Adjacent sequences: A253340 A253341 A253342 * A253344 A253345 A253346 KEYWORD nonn AUTHOR R. H. Hardin, Dec 30 2014 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 February 1 07:16 EST 2023. Contains 359981 sequences. (Running on oeis4.)