183878

Appears in sequences

• Numbers k such that k and k^2 use only the digits 1, 3, 4, 7 and 8.at n=9A137028
• G.f. satisfies A(x) = Sum_{n>=1} A(x^3)^n / A(x^(2*n)), with A(0) = 0 and A'(0) = 1.at n=34A383376