A069029 Powers of 4 with strictly increasing sum of digits.
1, 4, 16, 64, 256, 4096, 16384, 65536, 1048576, 16777216, 67108864, 268435456, 4294967296, 17179869184, 68719476736, 274877906944, 70368744177664, 281474976710656, 1125899906842624, 4503599627370496, 18014398509481984, 72057594037927936, 18446744073709551616
Offset: 1
Extensions
More terms from Larry Reeves (larryr(AT)acm.org), Jun 26 2002