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!)
 A212932 Number of 3Xn 0..n-1 arrays with no column j greater than column j-1 in all rows 1
 1, 63, 18226, 14177855, 23124921876, 68264066143602, 330676305397366860, 2450628904209116751423, 26359630332235218287361280, 394964706663355785627860751188, 7977079877065700492793254299414812 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Row 3 of A212930 LINKS R. H. Hardin, Table of n, a(n) for n = 1..16 EXAMPLE Some solutions for n=3 ..1..1..1....0..0..0....1..1..1....0..1..2....0..1..1....2..1..0....1..0..1 ..2..1..1....1..2..0....1..0..1....1..2..0....0..0..2....2..1..2....1..2..2 ..2..1..1....1..2..2....2..1..2....0..0..0....0..0..2....2..1..1....2..1..2 CROSSREFS Sequence in context: A289875 A062208 A132594 * A177233 A183482 A327416 Adjacent sequences:  A212929 A212930 A212931 * A212933 A212934 A212935 KEYWORD nonn AUTHOR R. H. Hardin May 31 2012 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 April 10 11:15 EDT 2021. Contains 342845 sequences. (Running on oeis4.)