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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A185563 1/4 the number of nX5 0..3 arrays with no element equal both to the element above and to the element to its left 1
 256, 202500, 159749820, 126017211780, 99407416968000, 78416544382742160, 61858104930689319360, 48796145962555619907720, 38492350573406180494467240, 30364304873646611423433030660, 23952577505016018447231455650500 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 5 of A185567 LINKS R. H. Hardin, Table of n, a(n) for n = 1..169 FORMULA Empirical: a(n)=829*a(n-1)-32339*a(n-2)+525706*a(n-3)-4547088*a(n-4)+22231638*a(n-5)-58780485*a(n-6)+68179725*a(n-7)-10661625*a(n-8) EXAMPLE Some solutions for 3X5 with a(1,1)=0 ..0..0..0..2..3....0..0..0..3..0....0..0..2..2..1....0..0..0..0..2 ..0..2..2..0..0....0..2..0..0..1....0..2..0..1..2....0..2..2..0..1 ..0..0..3..2..0....0..0..1..3..1....0..0..2..1..2....0..2..3..3..1 CROSSREFS Sequence in context: A185924 A013997 A118056 * A220302 A013833 A100636 Adjacent sequences:  A185560 A185561 A185562 * A185564 A185565 A185566 KEYWORD nonn AUTHOR R. H. Hardin Jan 31 2011 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 17:14 EST 2022. Contains 350572 sequences. (Running on oeis4.)