353436

Appears in sequences

• a(n) is number of solutions of the equation sigma(x)=10^n.at n=38A110078
• Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n-2) + 1, where a(0) = 1, a(1) = 3, b(0) = 2, b(1) = 4.at n=23A293316