71874

Appears in sequences

• a(n) = 2*n^3.at n=33A033431
• Numbers k such that k and k+1 have the same sum of squarefree divisors, or sqf(k) = sqf(k+1), where sqf(k) = A048250(k).at n=20A063964
• Numbers k such that core(k) = b(k,1)*b(k,0) where b(k,1) is the number of 1's in binary representation of k, b(k,0) the number of 0's and core(k) the squarefree part of k.at n=6A071639
• a(n) = floor(1/{(2+n^4)^(1/4)}), where {} = fractional part.at n=33A184537
• Numbers k such that the sum of prime factors of k (counted with multiplicity) equals four times the largest prime divisor of k.at n=37A212862
• Dirichlet g.f.: Product_{k>=2} 1 / (1 - k^(-s))^(k^3).at n=32A343283
• Dirichlet g.f.: Product_{k>=2} (1 + k^(-s))^(k^3).at n=32A343323
• a(n) = n * Sum_{d|n} binomial(d+4,5)/d.at n=21A343546
• a(n) is the least k that starts a sequence of exactly n numbers on which i + Omega(i) is constant, where Omega = A001222 (this is BigOmega).at n=4A369228
• Starts of runs of 3 consecutive integers in which each member of the run has at least one divisor of the form p^e with p <= e, where p is a prime.at n=0A376469
• Indices of record high points in A389704.at n=4A389705