72768

Appears in sequences

• Expansion of q^(-1/4) * (eta(q^4) / eta(q))^2 in powers of q.at n=26A001936
• 7-automorphic numbers ending in 8: final digits of 7n^2 agree with n.at n=4A030992
• Expansion of q^(-1/4) * (eta(q) * eta(q^4)^2 / eta(q^2)^3)^2 in powers of q.at n=26A079006
• a(n) = Sum_{k=0..n} C(2n,k)*A126155(n,k).at n=3A126159
• Expansion of psi(-x) * psi(-x^3) / (phi(x^2) * phi(x^6)) in powers of x where phi(), psi() are Ramanujan theta functions.at n=52A281731
• Composite k such that the primorial inflation of k is a sum of distinct primorial numbers.at n=29A351959