Number of binary arrays of length 2*n+2 with fewer than n ones in any length 2n subsequence (=less than 50% duty cycle).

A213120

Number of binary arrays of length 2*n+2 with fewer than n ones in any length 2n subsequence (=less than 50% duty cycle).

Terms

    a(0) =1a(1) =10a(2) =54a(3) =252a(4) =1110a(5) =4748a(6) =19964a(7) =83024a(8) =342678a(9) =1406748a(10) =5751636a(11) =23443240a(12) =95319484a(13) =386805112a(14) =1567130168a(15) =6340730552a(16) =25626393878a(17) =103472018492a(18) =417449893988

External references