382200

Appears in sequences

• A triangle of recursive Fibonacci Lah numbers: f(n) = Fibonacci(n)*f(n - 1), L(n, k) = binomial(n-1, k-1)*(f(n)/f(k)).at n=31A137478
• A partition product of Stirling_2 type [parameter k = -4] with biggest-part statistic (triangle read by rows).at n=25A157398
• Numbers with prime factorization pqr^2s^2t^3.at n=22A190386
• Triangle T(n,k) represents the coefficients of (x^20*d/dx)^n, where n=1,2,3,...; generalization of Stirling numbers of second kind A008277, Lah-numbers A008297.at n=11A223522
• Numbers whose sum of unitary divisors (A034448) is equal to the sum of exponential divisors (A051377).at n=5A236474
• a(n) = (n-3)*(n-2)^2*(n-1)^2*n/24.at n=15A292061
• Nonsquare integers >= 2 for which the square of its largest prime factor equals the sum of the squares of its other prime factors, with multiplicity.at n=13A391874