787401domain: NAppears in sequencesa(n) = ceiling((1 + sum of preceding terms) / 2) starting with a(0) = 1.at n=34A005428a(n) = ceiling((Sum_{k=1..n-1} a(k)) / 2) for n >= 2 starting with a(1) = 1.at n=35A073941Subsequence of A005428 with state = 1.at n=19A081614