173250

Appears in sequences

• Number of sorted multiplicative partitions of n!.at n=19A085288
• Numbers taking exactly 21 steps to reach 15 in A086793.at n=6A119397
• Triangle read by rows: coefficients of expansion in powers of x of the polynomials defined by p(n, x) = (2*n - 1)*p(n - 1, x) + (n - 1)^2*x^2*p(n - 2, x).at n=31A123244
• Integer areas of the intangents triangle of integer-sided triangles.at n=24A231740
• a(n) = lcm(A260443(n), A260443(1+n)).at n=24A284008
• a(n) = A059896(A260443(n), A260443(1+n)).at n=24A284576
• a(n) = Product_{d|n} A019565(d)^A010051(n/d).at n=41A329352
• Triangle read by rows: T(n,k) is the number of n-permutations whose fourth-shortest cycle has length exactly k; n >= 0, 0 <= k <= max(0,n-3).at n=33A350274