2703360

Appears in sequences

• a(n) = (n^3 - n)*2^n.at n=10A128960
• Number of divisors of A138113(n).at n=28A140410
• Triangle: r=23;l=7;m(r,l,n)=(r - l)*IdentityMatrix[n] + l*Table[1, {i, 1, n}, {j, 1, n}].at n=23A157981
• Expansion of Product_{k>=1} (1 + 4^(k-1)*x^k).at n=11A344063
• a(n) = Sum_{k=0..floor(n/3)} 2^k * 3^(n-3*k) * binomial(k,3*(n-3*k)).at n=37A392042