-3180

Appears in sequences

• Expansion of q * chi(-q) / chi(-q^5)^5 in powers of q where chi() is a Ramanujan theta function.at n=58A095813
• Expansion of q^(-1) * psi(-q) / psi(-q^3)^3 in powers of q where psi() is a Ramanujan theta function.at n=43A133637
• Expansion of the series reversion of Sum_{k>=1} x^(k*(k+1)/2).at n=13A291418
• Expansion of Product_{k>=1} (1-x^(k^2))^(k^2).at n=47A291696
• Dirichlet inverse of A341528, where A341528(n) = n * sigma(A003961(n)), and A003961 is fully multiplicative with a(prime(i)) = prime(i+1).at n=52A378228