356730

Appears in sequences

• Weight distribution of [ 47,24,11 ] binary quadratic-residue code.at n=16A028384
• Weight distribution of [ 47,24,11 ] binary quadratic-residue code.at n=31A028384
• Weight distribution of [ 47,23,12 ] binary quadratic-residue code.at n=4A028385
• Numbers k such that Sum_{d divides k} sigma(d)/phi(d) is an integer.at n=38A068991
• a(n) = (n-1)*n*(n+1)*(n+2)*(2*n+1)/40.at n=23A112851