A069032 Powers of 7 with strictly increasing sum of digits.

1, 7, 49, 16807, 117649, 5764801, 282475249, 1977326743, 96889010407, 678223072849, 4747561509943, 1628413597910449, 11398895185373143, 558545864083284007, 3909821048582988049, 9387480337647754305649, 459986536544739960976801

Offset: 1

Author

Amarnath Murthy, Apr 02 2002

Keywords

• nonn
• base

Crossrefs

Cf. A069027, A069028, A069029, A069030, A069031.

Extensions

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

More terms from Harvey P. Dale, Jan 22 2016