a(n) = floor(6^6/n).

Terms

a(0) =46656a(1) =23328a(2) =15552a(3) =11664a(4) =9331a(5) =7776a(6) =6665a(7) =5832a(8) =5184a(9) =4665a(10) =4241a(11) =3888a(12) =3588a(13) =3332a(14) =3110a(15) =2916a(16) =2744a(17) =2592a(18) =2455a(19) =2332a(20) =2221a(21) =2120a(22) =2028a(23) =1944a(24) =1866a(25) =1794a(26) =1728a(27) =1666a(28) =1608a(29) =1555