30068

Appears in sequences

• Inverse Moebius transform of f(x) = primorial(x) = A002110(x).at n=5A062797
• Expansion of theta_3(q) / theta_3(q^2) in powers of q.at n=44A080015
• G.f.: Product_{n >= 0} (1+x^(2n+1))/(1-x^(2n+1)).at n=44A080054
• Expansion of f(-q) / f(q) in powers of q where f() is a Ramanujan theta function.at n=44A108494
• Number of 11 X 11 arrays of squares of integers, symmetric about the diagonal and under 90-degree rotation, with all rows summing to n.at n=64A156407
• Sums of 4 distinct primorials.at n=18A177709
• Expansion of phi(q^2) / phi(-q) in powers of q where phi() is a Ramanujan theta function.at n=22A208850
• Expansion of phi(-q) / phi(q^2) in powers of q where phi() is a Ramanujan theta function.at n=44A210030
• Expansion of phi(q^2) / phi(q) in powers of q where phi() is a Ramanujan theta function.at n=22A210065
• Expansion of chi(x)^2 / chi(-x^2)^6 in powers of x where chi() is a Ramanujan theta function.at n=18A224916
• Numbers that are the sum of distinct primorial numbers (A002110) (not including 1).at n=38A290249
• Integers k such that 28*phi(29*197^3*k) is not a totient number where phi is the totient function.at n=10A361396