497664

Appears in sequences

• Denominator of sum of -6th powers of divisors of n.at n=11A017676
• Numbers of form 6^i*8^j, with i, j >= 0.at n=30A025627
• a(n) = 2^n*n^(n-1).at n=5A038057
• Greatest common divisor of (n+2)! and n^n.at n=11A062776
• 16-almost primes (generalization of semiprimes).at n=13A069277
• a(1) = 1, a(n) = smallest multiple of n divisible by the sum of all previous terms.at n=11A074179
• a(n) = (a(n-1) * a(n-6) + a(n-3) * a(n-4)) / a(n-7) (a variant of Somos-7).at n=21A078495
• Hankel transform of the sequence A001469 (unsigned), Genocchi numbers of first kind.at n=3A091810
• Numbers n such that (phi(n) + sigma(n))/(rad(n))^2 is an integer > 1 (phi=A000010, sigma=A000203, rad=A007947).at n=10A097982
• Largest order of a solvable subgroup of the symmetric group S_n.at n=14A099732
• a(n) = n!/A102356(n).at n=19A102456
• Square array T(n,k) read by antidiagonals: denominators of Stirling numbers of first kind with negative argument S1(-n,k), n,k>=0.at n=40A103880
• a(n) = (n+1)^3*(n+2)^2*(n+5).at n=7A109116
• Largest 3-smooth number dividing n!.at n=13A118381
• Numbers k such that (phi(k) + sigma(k))/rad(k)^2 is an integer, that is (phi(k) + sigma(k)) is divisible by every prime factor of k squared.at n=12A121850
• Cumulative product of A000120.at n=20A121853
• Numbers n such that the product of the squares of digits of n is nonzero and divisible by n.at n=40A128606
• a(1)=1; for n>1, a(n) = a(n-1) + lcm(a(n-1),n).at n=10A135504
• Hankel transform of aerated factorial numbers.at n=7A137704
• a(n) = 12^n*n!.at n=4A145448