The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A264330 Number of (n+1)X(n+1) arrays of permutations of 0..(n+1)^2-1 with each element having directed index change -1,1 1,0 1,-1 or 0,-1. 0
 0, 2, 11, 240, 15040, 2464988, 1082465413, 1305850666324, 4313697610977647, 38861959267954227472, 960516137799542036574195 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Diagonal of A264336. LINKS EXAMPLE Some solutions for n=4 ..1..5..3..7..8....1..5..3..7..8....1..5..3..4..8....1..2..6..4..8 ..0..2.11.12..4....0..2.11.12..4....0..7..2.12.13....0.10..3..9.13 ..6.15.13.14..9....6.15.16..9.18...11..6.16..9.18....5.15..7.17.18 .10.20.21.22.23...10.20.13.14.23...10.20.21.14.23...11.20.12.22.14 .16.17.18.24.19...21.22.17.24.19...15.22.17.24.19...21.16.23.24.19 CROSSREFS Cf. A264336. Sequence in context: A269710 A162385 A244012 * A134096 A132571 A102031 Adjacent sequences:  A264327 A264328 A264329 * A264331 A264332 A264333 KEYWORD nonn AUTHOR R. H. Hardin, Nov 11 2015 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 February 26 11:49 EST 2020. Contains 332279 sequences. (Running on oeis4.)