5622580domain: NAppears in sequencesNumber of 0..3 arrays of length n+7 with sum no more than 12 in any length 8 subsequence (=50% duty cycle).at n=4A212467Number of 0..3 arrays of length 2*n+4 with sum no more than 3*n in any length 2n subsequence (=50% duty cycle).at n=3A212476