Number of length n+2 0..5 arrays with the sum of second differences multiplied by some arrangement of +-1 equal to zero.
A250558
Number of length n+2 0..5 arrays with the sum of second differences multiplied by some arrangement of +-1 equal to zero.
Terms
- a(0) =18a(1) =200a(2) =1648a(3) =13732a(4) =106362a(5) =744564a(6) =4808120a(7) =29723864a(8) =180290280a(9) =1085927844a(10) =6524507992a(11) =39167586296a(12) =235053968050
External references
- oeis: A250558