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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A200550 Number of -5..5 arrays x(0..n+1) of n+2 elements with zero sum and nonzero second differences 1
 80, 836, 7778, 75792, 737460, 7286542, 72366820, 723237026, 7258296910, 73127883596, 739101010202, 7490787201124, 76099633989974, 774719436417776, 7901415122713726, 80719023935569240, 825814487838111514 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 5 of A200553 LINKS R. H. Hardin, Table of n, a(n) for n = 1..145 EXAMPLE Some solutions for n=3 ..3....5....3....1...-3....2...-5...-1....0...-5...-4...-3...-5....0...-5....3 .-1....0...-2...-3....3...-4....5....5...-5...-3....3....2...-2...-3....1...-2 ..0...-2....1....5...-1....1...-4...-3....4....1....0...-5....2....3....4....3 .-3...-2....0....2....2....1....3....3....4....3...-1....1....2....2...-2...-3 ..1...-1...-2...-5...-1....0....1...-4...-3....4....2....5....3...-2....2...-1 CROSSREFS Sequence in context: A279745 A062911 A024392 * A052519 A246545 A198400 Adjacent sequences:  A200547 A200548 A200549 * A200551 A200552 A200553 KEYWORD nonn AUTHOR R. H. Hardin Nov 19 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 May 23 06:57 EDT 2022. Contains 353961 sequences. (Running on oeis4.)