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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A216024 Number of horizontal, vertical and diagonal neighbor colorings of the odd squares of an n X n array with new integer colors introduced in row major order. 0
 1, 2, 4, 371, 146327, 10311562327 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Diagonal of A216031. LINKS EXAMPLE Some solutions for n=4 ..x..0..x..1....x..0..x..1....x..0..x..1....x..0..x..1....x..0..x..1 ..2..x..3..x....0..x..2..x....2..x..3..x....2..x..3..x....2..x..3..x ..x..3..x..4....x..1..x..0....x..3..x..0....x..4..x..2....x..1..x..4 ..3..x..0..x....3..x..0..x....4..x..2..x....5..x..2..x....1..x..0..x CROSSREFS Cf. A216031. Sequence in context: A012557 A012562 A263959 * A247220 A012753 A012440 Adjacent sequences: A216021 A216022 A216023 * A216025 A216026 A216027 KEYWORD nonn AUTHOR R. H. Hardin, Aug 30 2012 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 February 1 17:37 EST 2023. Contains 359993 sequences. (Running on oeis4.)