Number of arrays of n integers in -6..6 with sum zero and equal numbers of elements greater than zero and less than zero.
A201809
Number of arrays of n integers in -6..6 with sum zero and equal numbers of elements greater than zero and less than zero.
Terms
- a(0) =1a(1) =13a(2) =37a(3) =949a(4) =4501a(5) =99961a(6) =637393a(7) =12004357a(8) =93039589a(9) =1554288913a(10) =13794790153a(11) =211729119889
External references
- oeis: A201809