49517

Appears in sequences

• a(n) = floor(8^n/5^n).at n=23A094985
• Indices of Fibonacci numbers in A068136(n); that is, a(n) = least k such that the digits of Fibonacci(k) begin with the concatenation 1234..n.at n=4A110486
• G.f. a(x) satisfies: A(x) = 1 + Sum_{n>=1} x^n*A(x)^A000265(n) where A000265(n) = largest odd divisor of n.at n=12A191768