39529

Appears in sequences

• Base 4 digits are, in order, the first n terms of the periodic sequence with initial period 2,1,2.at n=7A037569
• Numbers n such that mu(n) + mu(n+1) + mu(n+2) + mu(n+3) + mu(n+4) + mu(n+5) + mu(n+6) = 6.at n=27A082967
• Expansion of Product_{k>=1} (1 + x^(3*k)) / (1 - x^k).at n=35A266648
• Expansion of 1/(1 - x^5/(1-x)^7).at n=16A369808
• a(n) = Sum_{k = 1..n} ( n/gcd(k, n) )^4.at n=8A372965
• a(n) = Sum_{k=0..floor((2*n+1)/5)} binomial(2*k+1,2*n-5*k+1).at n=25A392487