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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A264543 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 -1,2 1,0 or 0,-1. 0
 0, 2, 16, 216, 14852, 1994830, 591482528, 510948245264, 1135318355003028, 6257173857277450930 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Diagonal of A264550. LINKS EXAMPLE Some solutions for n=4 ..1..5..6..4..8....1..5..3..4..7....1..2..3..4..7....1..2..3..4..7 ..0..7..2..3.12....0.10..2..9.12....0.10..8..9.12....0.10..8.11.12 .11.15.16.14..9...11..6.13..8.17....5..6.13.14.18....5..6.13.17..9 .10.20.18.13.23...16.20.18.21.14...16.11.20.21.23...16.20.18.21.14 .21.22.17.24.19...15.22.23.24.19...15.22.17.24.19...15.22.23.24.19 CROSSREFS Cf. A264550. Sequence in context: A062971 A267782 A012164 * A223638 A188688 A188844 Adjacent sequences:  A264540 A264541 A264542 * A264544 A264545 A264546 KEYWORD nonn AUTHOR R. H. Hardin, Nov 17 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 January 21 00:46 EST 2022. Contains 350473 sequences. (Running on oeis4.)