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

 Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 59th year, we have over 358,000 sequences, and we’ve crossed 10,300 citations (which often say “discovered thanks to the OEIS”). Other ways to Give
 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A224967 Number of (n+1)X(n+1) 0..3 matrices with each 2X2 permanent equal 0
 256, 11196, 1417535, 4560581070, 14139394308728, 848170732137764831, 48673249025229489837168, 50198078741040638898913117046, 52964434709981516539278316299135035 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A224975 LINKS EXAMPLE Some solutions for n=2 ..3..1..0....2..0..2....1..2..3....2..2..0....3..0..3....2..2..3....3..0..3 ..0..0..0....0..0..2....2..0..2....0..3..3....0..3..2....3..0..3....0..0..0 ..1..2..2....3..0..2....3..2..3....2..1..1....3..3..1....3..2..2....3..0..0 CROSSREFS Sequence in context: A237966 A205936 A264496 * A205652 A284032 A205089 Adjacent sequences: A224964 A224965 A224966 * A224968 A224969 A224970 KEYWORD nonn AUTHOR R. H. Hardin Apr 21 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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified December 5 12:42 EST 2022. Contains 358586 sequences. (Running on oeis4.)