Number of length n+2 0..3 arrays with the sum of the maximum minus the minimum of adjacent triples multiplied by some arrangement of +-1 equal to zero.
A252172
Number of length n+2 0..3 arrays with the sum of the maximum minus the minimum of adjacent triples multiplied by some arrangement of +-1 equal to zero.
Terms
- a(0) =4a(1) =132a(2) =264a(3) =1872a(4) =6820a(5) =31420a(6) =123826a(7) =515268a(8) =2058802a(9) =8332796a(10) =33350162a(11) =133891940a(12) =535789038a(13) =2145632584a(14) =8584207782a(15) =34349419412a(16) =137408677592a(17) =549699224224
External references
- oeis: A252172