Exponents k such that the sum of decimal digits of 2^k is also a power of 2.

Terms

a(0) =0a(1) =1a(2) =2a(3) =3a(4) =9a(5) =36a(6) =85a(7) =176a(8) =194a(9) =200a(10) =375a(11) =1517a(12) =1523a(13) =3042a(14) =5953a(15) =6043a(16) =6109a(17) =12068a(18) =12104a(19) =96251a(20) =193734a(21) =386797a(22) =387589a(23) =1545477a(24) =3092224a(25) =3098800a(26) =6188717a(27) =6191693a(28) =6199469a(29) =24753865