Number of 0..3 arrays of length 2*n+4 with sum no more than 3*n in any length 2n subsequence (=50% duty cycle).
A212476
Number of 0..3 arrays of length 2*n+4 with sum no more than 3*n in any length 2n subsequence (=50% duty cycle).
Terms
- a(0) =707a(1) =16649a(2) =321320a(3) =5622580a(4) =95010466a(5) =1578372444a(6) =25966120647a(7) =424537002094
External references
- oeis: A212476