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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A224347 Number of n X n 0..2 arrays with diagonals and antidiagonals unimodal and rows nondecreasing 0
 3, 36, 788, 19608, 495985, 12340932, 300892325, 7202270426, 169987960308, 3972599259664, 92292550974356 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A224353 LINKS EXAMPLE Some solutions for n=3 ..0..1..1....0..0..1....1..2..2....0..0..0....1..2..2....0..0..0....0..0..1 ..1..1..2....1..1..2....0..1..2....0..0..2....0..2..2....0..1..2....2..2..2 ..2..2..2....0..1..1....1..1..1....0..2..2....0..0..1....0..0..0....0..2..2 CROSSREFS Sequence in context: A301582 A122220 A186730 * A227251 A326273 A224006 Adjacent sequences:  A224344 A224345 A224346 * A224348 A224349 A224350 KEYWORD nonn AUTHOR R. H. Hardin Apr 04 2013 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.

Last modified January 25 07:55 EST 2020. Contains 331241 sequences. (Running on oeis4.)