24003

Appears in sequences

• Discriminants of totally complex sextic fields (negated).at n=20A023687
• Numbers k that divide 5^k + 4^k.at n=39A045590
• Numbers such that the digital sum base 2 and the digital sum base 3 and the digital sum base 10 all are equal.at n=26A135120
• The sum of the elements within a jump in a Sieve of Eratosthenes table.at n=30A179545
• E.g.f. satisfies: A(x) = x + sinh( A(x) )^2 / 2.at n=6A215093
• Numbers such that sigma(phi(tau(n)))=tau(phi(sigma(n))).at n=19A226119
• Number of (n+2)X(3+2) 0..3 arrays with no element unequal to a strict majority of its horizontal, vertical, diagonal and antidiagonal neighbors, with values 0..3 introduced in row major order.at n=8A231436
• Coefficient of x^n in the expansion of 1/( (1-x) * (1-x^3)^2 )^n.at n=8A370274
• Array A(n,k) = n*(A(n-1,k)+A(n-2,k)+...+A(n-k,k)), where A(n,k) = n if n <= k, read by antidiagonals with n >= 1 and k >= 1.at n=57A384147
• Numbers k such that sigma(k) = psi(k) + tau(k)^3.at n=6A390297