Number of 0..3 arrays of length 2*n+4 with sum less than 3*n in any length 2n subsequence (=less than 50% duty cycle).
A213469
Number of 0..3 arrays of length 2*n+4 with sum less than 3*n in any length 2n subsequence (=less than 50% duty cycle).
Terms
- a(0) =157a(1) =7803a(2) =191573a(3) =3737885a(4) =67329406a(5) =1167362677a(6) =19808276303a(7) =331605526490
External references
- oeis: A213469