90985

Appears in sequences

• Numbers n for which there are exactly seven k such that n = k + (product of nonzero digits of k).at n=16A096928
• G.f. is the polynomial (1-x^3) * (1-x^6) * (1-x^9) * (1-x^12) * (1-x^15) * (1-x^18) * (1-x^21) / (1-x)^7.at n=20A162595