84329domain: NAppears in sequencesNumerators of a(n+1) = Sum_{k=1..n} a'(n/k), a(1)=1, where a'(x)=a(x) if x integer and is linearly interpolated otherwise.at n=21A071795Number of base 29 circular n-digit numbers with adjacent digits differing by 1 or less.at n=9A124784