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!)
 A316635 Number of nXn 0..1 arrays with every element unequal to 1, 2, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero. 0
 0, 7, 43, 524, 14568, 684269, 69857903, 14106315869, 5489873419154 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Diagonal of A316641. LINKS EXAMPLE Some solutions for n=5 ..0..1..0..0..1. .0..0..0..0..1. .0..0..0..0..0. .0..1..1..1..1 ..1..1..1..0..0. .1..1..0..0..0. .1..0..1..0..1. .1..1..1..0..0 ..1..1..1..1..1. .0..1..1..0..0. .0..0..0..0..0. .1..1..0..1..0 ..0..1..1..1..0. .1..1..1..1..0. .1..0..0..0..1. .1..0..0..1..1 ..0..0..1..1..1. .0..1..0..1..0. .1..1..0..1..1. .1..1..0..1..0 CROSSREFS Cf. A316641. Sequence in context: A345075 A204733 A195230 * A222981 A023316 A289737 Adjacent sequences:  A316632 A316633 A316634 * A316636 A316637 A316638 KEYWORD nonn AUTHOR R. H. Hardin, Jul 09 2018 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 November 26 04:47 EST 2022. Contains 358353 sequences. (Running on oeis4.)