A069027 Powers of 2 with strictly increasing sum of digits.

1, 2, 4, 8, 64, 128, 256, 2048, 4096, 8192, 16384, 32768, 524288, 1048576, 8388608, 268435456, 2147483648, 4294967296, 8589934592, 68719476736, 274877906944, 549755813888, 281474976710656, 1125899906842624, 2251799813685248

Offset

1,2

Links

Seiichi Manyama, Table of n, a(n) for n = 1..223

Index to divisibility sequences

Mathematica

DeleteDuplicates[Table[{2^n, Total[IntegerDigits[2^n]]}, {n, 0, 60}], GreaterEqual[ #1[[2]], #2[[2]]]&][[All, 1]] (* Harvey P. Dale, Aug 15 2022 *)

Crossrefs

Cf. A069028, A069029.

Sequence in context: A371966 A263451 A339951 * A362343 A065549 A067507

Adjacent sequences: A069024 A069025 A069026 * A069028 A069029 A069030

Keyword

nonn,base

Author

Amarnath Murthy, Apr 02 2002

Extensions

More terms from Larry Reeves (larryr(AT)acm.org), Jun 26 2002

Status

approved