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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A199943 T(n,k)=Number of -k..k arrays x(0..n-1) of n elements with zeroth through n-1st differences all nonzero 12
 2, 4, 2, 6, 12, 2, 8, 30, 36, 2, 10, 56, 142, 104, 2, 12, 90, 376, 660, 302, 2, 14, 132, 778, 2474, 3042, 868, 2, 16, 182, 1404, 6604, 16114, 13890, 2490, 2, 18, 240, 2294, 14696, 55540, 104268, 63260, 7132, 2, 20, 306, 3504, 28490, 152586, 464782, 672866, 287514 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts .2.....4.......6.........8.........10..........12.........14.........16 .2....12......30........56.........90.........132........182........240 .2....36.....142.......376........778........1404.......2294.......3504 .2...104.....660......2474.......6604.......14696......28490......50448 .2...302....3042.....16114......55540......152586.....351148.....721324 .2...868...13890....104268.....464782.....1577040....4310382...10274388 .2..2490...63260....672866....3879760....16261206...52799912..146068736 .2..7132..287514...4334232...32334096...167447004..646091920.2074543774 .2.20424.1305394..27893374..269266622..1723164176.7901341926 .2.58418.5924042.179433990.2241467296.17727091612 LINKS R. H. Hardin, Table of n, a(n) for n = 1..128 EXAMPLE Some solutions for n=7 k=6 ..2...-4...-4....6....3....2....4...-6....6....2...-2...-5....2...-3....2...-4 .-3...-3....4...-6...-6....1...-3...-3....4...-6...-3....1....4....1....1...-6 ..1...-6...-6....1...-3...-6...-6...-6...-6...-3...-6....4...-6...-6...-3....1 .-6....4...-3...-6...-6...-3...-3....1....1....4...-3....1...-3....1....4....4 .-2...-4...-4....5....6...-4....5...-1....5....3...-4...-6....2....6....2...-6 ..3....2....5...-2...-6....5...-5....5...-5....6...-2...-3....6....1....5...-5 .-3....1...-6....4....1...-6....4...-3....4....4...-6....1...-3...-6....1...-3 CROSSREFS Row 2 is A002939 Sequence in context: A085190 A285702 A104000 * A335340 A013599 A276528 Adjacent sequences: A199940 A199941 A199942 * A199944 A199945 A199946 KEYWORD nonn,tabl AUTHOR R. H. Hardin Nov 12 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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified June 10 20:56 EDT 2023. Contains 363207 sequences. (Running on oeis4.)