63953

Appears in sequences

• Indices of primes in sequence defined by A(0) = 67, A(n) = 10*A(n-1) + 17 for n > 0.at n=12A101539
• Numerator of Sum_{k=1..n}(-1)^k/phi(k), where phi = A000010.at n=35A211177
• Expansion of (1-2*x+x^2)/(1-3*x-3*x^2+x^3).at n=9A217233
• Lengths of complete iterations (direct and reverse branches) of the Kolakoski sequence A000002.at n=45A249508