96594domain: NAppears in sequencesa(n) = floor(1/(n-1) * Sum_{k=1..n-1} a(k)^(n/k)), given a(0)=1, a(1)=2, a(2)=7.at n=13A079119Number of one-element transitions among partitions of the integer n for unlabeled parts.at n=30A093695