280840

Appears in sequences

• Binomial coefficient C(8n,n-12).at n=3A004393
• Dodecahedral numbers: a(n) = n*(3*n - 1)*(3*n - 2)/2.at n=40A006566
• Number of labeled pure 2-complexes on n nodes with 3 2-simplexes.at n=6A054644
• a(n) = n*(n-1)*(n-2)*(n-3)*(n^2-3*n-2)/48.at n=17A093566
• Triangle read by rows: T(m,n) = binomial(m!,n), m>=0, 0 <= n <= m!.at n=42A105291
• Triangle, read by rows, T(n, k) = binomial(n*binomial(n, k), k).at n=24A157108
• T(n,m) = binomial(m!,n).at n=23A180397
• Least n=4 (mod 6) such that p^2 | n^n+(n+1)^(n+1) but not p | n^2+n+1, where p =A195987(k).at n=3A197319
• a(1)=5, a(n) = a(n-1)*(a(n-1)-1)*(a(n-1)-2)/6.at n=3A251702
• a(n) = (5*n + 3)*(5*n + 4)*(5*n + 5)/6.at n=23A300522