69828
domain: N
Appears in sequences
- a(n) = n^2*(n^2 - 1)/4.at n=23A006011
- Triangle of coefficients of polynomials used for g.f.s of columns of A067304.at n=39A067329
- Largest achievable determinant of a 4 X 4 matrix whose elements are 16 distinct nonnegative integers chosen from the range 0...n.at n=2A097694
- a(n) = ((prime(n))^4-(prime(n))^2)/4.at n=8A138420
- Averages of twin prime pairs of A074378.at n=18A154563
- Number of 2-step self-avoiding walks on an n X n X n cube summed over all starting positions.at n=22A187163
- Number of (w,x,y,z) with all terms in {0,...,n}, w even and x odd.at n=22A212766