288925

Appears in sequences

• Graham-Sloane-type lower bound on the size of a ternary (n,3,5) constant-weight code.at n=36A030505
• G.f. satisfies: A(x) = (1 + x*(1-x)*A(x)) * (1 + x^2*A(x)).at n=24A216604
• Odd numbers k such that phi(k) = phi(k+2), where phi is the Euler totient function (A000010).at n=18A333741