212420

Appears in sequences

• Number of exterior points formed by extending diagonals of n-gon in general position.at n=37A005701
• Number of scalars which can be constructed from the Riemann tensor and metric tensor in n dimensions.at n=39A050297
• a(n) = n*(n-1)*(n-2)*(n+3)/12.at n=40A117662
• Numbers that are the sum of six fourth powers in ten or more ways.at n=20A345567