Number of length n+1 0..2 arrays with the sum of the minimum of each adjacent pair multiplied by some arrangement of +-1 equal to zero.
A250413
Number of length n+1 0..2 arrays with the sum of the minimum of each adjacent pair multiplied by some arrangement of +-1 equal to zero.
Terms
- a(0) =5a(1) =17a(2) =38a(3) =125a(4) =335a(5) =1061a(6) =3069a(7) =9495a(8) =28221a(9) =86149a(10) =258252a(11) =782393a(12) =2350442a(13) =7090347a(14) =21303611a(15) =64109181a(16) =192553620a(17) =578665211a(18) =1737374865a(19) =5217197093a(20) =15659477401a(21) =47004010481a(22) =141055441813a(23) =423295193635
External references
- oeis: A250413