Number of length n+1 0..3 arrays with the sum of the minimum of each adjacent pair multiplied by some arrangement of +-1 equal to zero.
A250414
Number of length n+1 0..3 arrays with the sum of the minimum of each adjacent pair multiplied by some arrangement of +-1 equal to zero.
Terms
- a(0) =7a(1) =36a(2) =99a(3) =476a(4) =1693a(5) =7504a(6) =29221a(7) =123242a(8) =492076a(9) =2021436a(10) =8111306a(11) =32877666a(12) =131905733a(13) =531080990a(14) =2128576994a(15) =8541648896a(16) =34206851593a(17) =137042168870a(18) =548526597108
External references
- oeis: A250414