66484

Appears in sequences

• Numbers whose base-3 representation has exactly 11 runs.at n=12A043591
• Numbers n such that number of runs in the base 3 representation of n is congruent to 1 mod 10.at n=32A043816
• Indices of primes in sequence defined by A(0) = 51, A(n) = 10*A(n-1) + 31 for n > 0.at n=17A101578
• G.f. satisfies: A(x) = exp( Sum_{n>=1} (1+x)^n * A(x^n) * x^n/n ).at n=11A199103