263422708979domain: NAppears in sequencesNumber of 0..3 arrays of length n+13 with sum less than 21 in any length 14 subsequence (=less than 50% duty cycle).at n=6A213463Number of 0..3 arrays of length 2*n+6 with sum less than 3*n in any length 2n subsequence (=less than 50% duty cycle).at n=6A213471