111398

Appears in sequences

• Numbers k such that phi(k)=p^2, where p is product of digits of k.at n=12A153427
• Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n-2) + n, where a(0) = 1, a(1) = 3, b(0) = 2, b(1) = 4.at n=20A293349