Numbers of the form Product_i p_i^e_i, where the p_i are distinct primes and the e_i are a permutation of the p_i.

A122406

Numbers of the form Product_i p_i^e_i, where the p_i are distinct primes and the e_i are a permutation of the p_i.

Terms

    a(0) =1a(1) =4a(2) =27a(3) =72a(4) =108a(5) =800a(6) =3125a(7) =6272a(8) =12500a(9) =21600a(10) =30375a(11) =36000a(12) =48600a(13) =84375a(14) =121500a(15) =169344a(16) =225000a(17) =247808a(18) =337500a(19) =395136a(20) =750141a(21) =823543a(22) =857304a(23) =1384448a(24) =3000564a(25) =3294172a(26) =6690816a(27) =19600000a(28) =22235661a(29) =24532992

External references