138254domain: NAppears in sequencesa(n) = ceiling(a(n-1)*3/2) with a(1) = 1.at n=28A061419Values of register b when register a becomes 0 for the two register machine {i[1], i[1], i[1], d[2,1], d[1,6], i[2], d[1,5], d[2,3]}.at n=28A156623