The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A296958 Number of nX3 0..1 arrays with each 1 adjacent to 2, 3 or 5 king-move neighboring 1s. 1
 1, 16, 60, 177, 869, 3994, 16348, 71669, 320252, 1397642, 6126487, 27033698, 118937813, 522957359, 2302293383, 10134259558, 44597178254, 196288034748, 863967834742, 3802581182754, 16736484491069, 73664164496629 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Column 3 of A296963. LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 FORMULA Empirical: a(n) = 6*a(n-1) -10*a(n-2) +35*a(n-3) -116*a(n-4) +105*a(n-5) -196*a(n-6) +548*a(n-7) -320*a(n-8) +279*a(n-9) -955*a(n-10) +520*a(n-11) +159*a(n-12) +545*a(n-13) -530*a(n-14) -236*a(n-15) +188*a(n-16) +22*a(n-17) +6*a(n-18) -40*a(n-19) +25*a(n-20) -2*a(n-21) EXAMPLE Some solutions for n=5 ..0..1..0. .0..1..1. .0..1..0. .1..1..0. .0..0..0. .0..1..1. .1..1..0 ..1..1..0. .1..1..0. .1..1..1. .1..0..1. .0..1..0. .0..1..0. .0..1..0 ..0..0..0. .0..0..0. .0..0..0. .0..0..1. .1..0..1. .0..0..0. .0..1..0 ..1..1..1. .0..0..0. .0..1..1. .0..1..0. .1..1..0. .1..1..0. .1..0..1 ..1..1..1. .0..0..0. .0..0..1. .1..1..0. .0..1..1. .0..1..1. .0..1..0 CROSSREFS Cf. A296963. Sequence in context: A292537 A258730 A187173 * A258731 A316125 A345894 Adjacent sequences: A296955 A296956 A296957 * A296959 A296960 A296961 KEYWORD nonn AUTHOR R. H. Hardin, Dec 22 2017 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 June 17 21:09 EDT 2024. Contains 373464 sequences. (Running on oeis4.)