64470

Appears in sequences

• Triangle read by rows: T(n,k), n >=1, 0 <= k <= C(n,k), = number of n X n symmetric positive definite matrices with 2's on the main diagonal and 1's and 0's elsewhere and with k 1's above the diagonal.at n=52A080858
• Numbers k having exactly 5 distinct prime factors, the largest of which is greater than or equal to sqrt(k) (i.e., sqrt(k)-rough numbers with exactly 5 distinct prime factors).at n=16A115959
• Number of reduced words of length n in the Weyl group E_8 on 8 generators and order 696729600.at n=14A162494
• Weight multiplicities for the trivial representation of the Lie algebra E_8.at n=15A340522