63002domain: NAppears in sequencesa(n) = 26 + 2^(n+1)*(-13 +9*n -3*n^2 +n^3).at n=7A036827Numbers of the form (square + 1) that are not squarefree.at n=26A124809Numbers sandwiched between two semiprimes, one of which is a square.at n=37A358686