16740414domain: NAppears in sequencesNumber of 0..2 arrays of length n+11 with sum no more than 12 in any length 12 subsequence (=50% duty cycle).at n=4A212230Number of 0..2 arrays of length 4+2*n with sum no more than 2*n in any length 2n subsequence (=50% duty cycle).at n=5A212237