Number of -2..2 arrays x(0..n+1) of n+2 elements with zero sum and nonzero second differences.
A200547
Number of -2..2 arrays x(0..n+1) of n+2 elements with zero sum and nonzero second differences.
Terms
- a(0) =14a(1) =76a(2) =280a(3) =1240a(4) =4978a(5) =21626a(6) =91058a(7) =393660a(8) =1686980a(9) =7309386a(10) =31632968a(11) =137600876a(12) =599055566a(13) =2615427970a(14) =11433493630a(15) =50075195034a(16) =219589525108a(17) =964264276780
External references
- oeis: A200547