Smallest power of n containing it in binary representation.

Terms

a(0) =1a(1) =4a(2) =27a(3) =16a(4) =125a(5) =216a(6) =343a(7) =64a(8) =729a(9) =1000a(10) =161051a(11) =1728a(12) =28561a(13) =2744a(14) =3375a(15) =256a(16) =4913a(17) =5832a(18) =47045881a(19) =8000a(20) =85766121a(21) =5153632a(22) =12167a(23) =13824a(24) =9765625a(25) =11881376a(26) =729a(27) =21952a(28) =24389a(29) =27000