This site is supported by donations to The OEIS Foundation.

 Please make a donation to keep the OEIS running. We are now in our 55th year. In the past year we added 12000 new sequences and reached 8000 citations (which often say "discovered thanks to the OEIS"). We need to raise money to hire someone to manage submissions, which would reduce the load on our editors and speed up editing. Other ways to donate

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A188813 T(n,k)=Number of nXk array permutations with each element moved but remaining in its original row or its original column 4
 0, 1, 1, 2, 4, 2, 9, 20, 20, 9, 44, 272, 448, 272, 44, 265, 6032, 25904, 25904, 6032, 265, 1854, 205312, 2952608, 7114752, 2952608, 205312, 1854, 14833, 9672448, 596917696, 4566151168, 4566151168, 596917696, 9672448, 14833, 133496, 601903360 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,4 COMMENTS Table starts .....0.......1.........2..........9.........44.......265.........1854.....14833 .....1.......4........20........272.......6032....205312......9672448.601903360 .....2......20.......448......25904....2952608.596917696.194286402560 .....9.....272.....25904....7114752.4566151168 ....44....6032...2952608.4566151168 ...265..205312.596917696 ..1854.9672448 .14833 LINKS R. H. Hardin, Table of n, a(n) for n = 1..39 EXAMPLE Some solutions for 4X3 ..6.10..1....6..2.11....6..0.11....6..4..1....1.10..8....2.10..5....3..2.11 ..0..7..8....0..1..3....5..1..4....9..3..2....9..3..2....9..7..3....6..1..4 ..9..4..5....9..8..7....7..8..2....8.10.11....0..4..6....0..4..6....9.10..5 ..3.11..2...10..4..5....3..9.10....0..7..5...11..7..5...11..1..8....0..7..8 CROSSREFS Column 1 is A000166 Sequence in context: A058942 A196759 A303165 * A324958 A072866 A061393 Adjacent sequences:  A188810 A188811 A188812 * A188814 A188815 A188816 KEYWORD nonn,tabl AUTHOR R. H. Hardin Apr 11 2011 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 December 5 17:42 EST 2019. Contains 329768 sequences. (Running on oeis4.)