Least m>0 such that n! <= m^3.

Terms

a(0) =1a(1) =2a(2) =2a(3) =3a(4) =5a(5) =9a(6) =18a(7) =35a(8) =72a(9) =154a(10) =342a(11) =783a(12) =1840a(13) =4435a(14) =10936a(15) =27556a(16) =70853a(17) =185687a(18) =495487a(19) =1344957a(20) =3710633a(21) =10397339a(22) =29568649a(23) =85290742a(24) =249391642a(25) =738821757a(26) =2216465269a(27) =6730493990a(28) =20678209930a(29) =64252006060