885780

Appears in sequences

• a(n) = n*(n + 1)*(n + 2)*(n + 3)/2.at n=35A033486
• a(n) = C(1+n,1) * C(2+n,1) * C(4+n,2).at n=34A112415
• Number of oriented n-dimensional polytopes with n+3 vertices, meaning that two polytopes are identified if they have the same combinatorial type and there exists an orientation-preserving homeomorphism mapping the first polytope to the second polytope.at n=12A114290
• Smallest number not yet used that is either a divisor or multiple of both n and a(n-1).at n=37A119862
• Irregular array read by rows, where n-th row gives denominators of the Egyptian fraction expansion, derived using the greedy algorithm, for the absolute value of the fractional part of the (2n)th Bernoulli number.at n=44A136375
• Number of compositions of odd natural numbers into 6 parts <= n.at n=10A191901
• ((-1)^n - 1 + 2*(n^floor((n + 1)/2)))/4.at n=10A275574
• a(n) is the smallest number with exactly n divisors that are Moran numbers, or -1 if no such number exists.at n=22A333457