30274

Appears in sequences

• Expansion of eta(q^2)eta(q^10)^3/(eta(q^5)eta(q)^3) in powers of q.at n=16A095846
• A 'Morgan Voyce' transform of A007854.at n=6A155862
• a(n) = n^3/3 - 7*n/3 + 4.at n=45A270809
• Numbers m such that psi(x) = phi(m) has a solution while sigma(y) = phi(m) has none.at n=29A291524
• Numbers k such that A003415(k) >= A276086(k) and gcd(k, A003415(k)) = gcd(k, A276086(k)), where A003415 is the arithmetic derivative, and A276086 is the primorial base exp-function.at n=39A369959
• Numbers k such that (A276086(k)/s)^s >= k^(s-1) and A276086(k) <= A003415(k), where A003415 is the arithmetic derivative, A276086 is the primorial base exp-function, and s = bigomega(k).at n=44A370128