390195domain: NAppears in sequencesa(n) = n*(16*n^2 - 1).at n=28A069975a(n) = lcm(n, n+1, n+2, n+3, n+4, n+5, n+6, n+7)/840.at n=23A188897Nondeficient numbers k for which A324644(k)/A324198(k) = 2.at n=14A387165