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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A300177 Number of nX3 0..1 arrays with every element equal to 0, 1, 2, 3, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero. 1
 4, 32, 255, 2033, 16208, 129217, 1030173, 8212978, 65477359, 522013397, 4161713160, 33178950053, 264516722873, 2108839989442, 16812570686523, 134036975068993, 1068599860225264, 8519333271178937, 67919753770243365 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 3 of A300182. LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 Simon Plouffe, Conjectures of the OEIS, as of June 20, 2018. FORMULA Empirical: a(n) = 7*a(n-1) +7*a(n-2) +6*a(n-3). Empirical g.f.: -x*(-3*x^2-4*x-4)/(-6*x^3-7*x^2-7*x+1). - Simon Plouffe, Jun 21 2018 EXAMPLE Some solutions for n=5 ..0..1..1. .0..1..1. .0..0..0. .0..1..1. .0..1..0. .0..0..1. .0..0..1 ..1..1..0. .0..0..1. .0..1..1. .1..1..0. .0..1..1. .0..0..1. .1..1..0 ..1..1..1. .0..0..0. .0..1..0. .0..0..0. .1..0..0. .1..1..0. .0..1..0 ..0..0..1. .0..1..1. .0..0..0. .1..1..1. .1..1..1. .0..0..1. .0..1..1 ..1..0..0. .0..1..1. .1..1..0. .0..0..1. .1..0..1. .0..0..0. .0..0..0 CROSSREFS Cf. A300182. Sequence in context: A108449 A213413 A317512 * A013731 A092811 A363440 Adjacent sequences: A300174 A300175 A300176 * A300178 A300179 A300180 KEYWORD nonn AUTHOR R. H. Hardin, Feb 27 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 September 15 08:55 EDT 2024. Contains 375932 sequences. (Running on oeis4.)