Number of -5..5 arrays x(0..n-1) of n elements with zero sum and no element more than one greater than the previous.

A199844

Number of -5..5 arrays x(0..n-1) of n elements with zero sum and no element more than one greater than the previous.

Terms

    a(0) =1a(1) =6a(2) =25a(3) =103a(4) =399a(5) =1532a(6) =5754a(7) =21383a(8) =78735a(9) =288580a(10) =1053894a(11) =3840866a(12) =13981403a(13) =50874249a(14) =185128907a(15) =673970102a(16) =2455319377a(17) =8952722626a(18) =32676307483a(19) =119391572211a(20) =436711281979

External references