53592

Appears in sequences

• a(n) = n*(n + 1)*(n^2 + n + 2)/4.at n=21A001621
• Coordination sequence for A_21 lattice.at n=2A035847
• Largest possible z-value of an integer solution (x,y,z) to 4/n = 1/x + 1/y + 1/z satisfying 0 < x < y < z. The x and y components are in A075245 and A075246.at n=39A075247
• Triangle of binomial(n,k)*(binomial(n+k,k)-binomial(n+k-2,k-1)).at n=41A080721
• Numbers that can be expressed as the difference of the squares of primes in exactly eight distinct ways.at n=8A092004
• Numbers k such that both k and k^2/2 are averages of twin prime pairs.at n=33A152787
• a(n) = 1728*n + 24.at n=30A157325
• Number of 3-turn bishop's tours on an n X n board summed over all starting positions.at n=13A188778
• z-value of the lexicographically first solution (x,y,z) of 4/n = 1/x + 1/y + 1/z with 0 < x < y < z all integers, or 0 if there is no such solution. Corresponding x and y values are in A257839 and A257840.at n=41A257841