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

1,2

Links

Table of n, a(n) for n=1..17.

Crossrefs

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

Sequence in context: A061585 A202782 A067214 * A345975 A368113 A271623

Adjacent sequences: A069029 A069030 A069031 * A069033 A069034 A069035

Keyword

nonn,base

Author

Amarnath Murthy, Apr 02 2002

Extensions

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

More terms from Harvey P. Dale, Jan 22 2016

Status

approved