25934

Appears in sequences

• (Product of primes <= n) - 2^(n-1).at n=12A068511
• a(n) = 997*n + 1009.at n=25A100776
• Number of (n+2) X (2+2) 0..1 arrays with no 3 X 3 subblock diagonal sum 0 and no antidiagonal sum 3 and no row sum 1 and no column sum 1.at n=20A257441
• Composite numbers k such that phi(x) = psi(k)*phi(k) has no solution.at n=22A292714
• Numbers k such that m=2*k is the middle side in a Heronian triangle with sides m-13, m , m+13.at n=19A293817
• Expansion of g.f. A(x) satisfying 0 = Sum_{n=-oo..+oo} x^n * (x^n - A(x))^(3*n+1).at n=8A355866