32760

Appears in sequences

• Landau's function g(n): largest order of permutation of n elements. Equivalently, largest LCM of partitions of n.at n=42A000793
• Harmonic or Ore numbers: numbers k such that the harmonic mean of the divisors of k is an integer.at n=16A001599
• a(n) = (3n+3)!/(2n+3)!.at n=5A001763
• Denominator in Feinler's formula for unsigned Bernoulli number |B_{2n}|.at n=19A002444
• Denominators of Cauchy numbers of second type (= Bernoulli numbers B_n^{(n)}).at n=38A002790
• Increasing values of A000793 (largest order of permutation of n elements).at n=27A002809
• Maximal period of an n-stage shift register.at n=16A005417
• a(n) = denominator of Bernoulli(2n)/(2n).at n=5A006953
• Numbers whose divisors' harmonic and arithmetic means are both integers.at n=13A007340
• Multiply-perfect numbers: n divides sigma(n).at n=8A007691
• Theta series of direct sum of 5 copies of hexagonal lattice.at n=6A008656
• a(n) = n*(n+1)*(2*n+1)*(3*n+1)/6.at n=13A011195
• a(n) = (n+1)*(2*n+1)*(3*n+1).at n=17A011199
• a(n) = floor(n*(n-1)*(n-2)*(n-3)/15).at n=28A011925
• Numbers k such that sigma(k) >= 4*k.at n=2A023198
• a(n) = n*(n^3 - 1)/2.at n=14A027482
• Numbers k such that the set of prime divisors of k is equal to the set of prime divisors of sigma(k).at n=18A027598
• 4-perfect (quadruply-perfect or sous-triple) numbers: sum of divisors of n is 4n.at n=1A027687
• Table read by rows: list of even numbers to the right of the central elements of the (2,3)-Pascal triangle A029600.at n=33A029617
• Even numbers to left of central elements of the (3,2)-Pascal triangle A029618.at n=36A029631