21292987433domain: NAppears in sequencesNumber of 0..3 arrays of length n+11 with sum no more than 18 in any length 12 subsequence (=50% duty cycle).at n=6A212469Number of 0..3 arrays of length 2*n+6 with sum no more than 3*n in any length 2n subsequence (=50% duty cycle).at n=5A212478