47495domain: NAppears in sequencesSmallest odd number greater than any previous term such that it divides the concatenation of all the previous terms and itself; begin with 1.at n=18A228806Expansion of Sum_{p prime, i>=1} x^(p^i)/(1 - x^(p^i)) / Product_{p prime, j>=1} (1 - x^(p^j)).at n=46A281616