372637domain: NPropertiesPrimalityPrimeyesAppears in sequencesLet M(n) be the n X n matrix m(i,j)=min(i,j) for 1<=i,j<=n then a(n) is the trace of M(n)^(-8).at n=30A114360Primes of the form 5n^2 - 8.at n=21A201789Smallest prime of the form "Concatenate(m,n,m)".at n=26A252942Prime numbersat n=31716