a(n+1) = a(n) converted to base 10 from base 15.

Terms

a(0) =10a(1) =15a(2) =20a(3) =30a(4) =45a(5) =65a(6) =95a(7) =140a(8) =285a(9) =575a(10) =1235a(11) =3875a(12) =12035a(13) =57425a(14) =277685a(15) =1898225a(16) =17948735a(17) =257659250a(18) =6064652775a(19) =231735692810