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A004647 Powers of 2 written in base 8. 0
1, 2, 4, 10, 20, 40, 100, 200, 400, 1000, 2000, 4000, 10000, 20000, 40000, 100000, 200000, 400000, 1000000, 2000000, 4000000, 10000000, 20000000, 40000000, 100000000, 200000000, 400000000, 1000000000 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

COMMENTS

Or, numbers of form 10^n, 2*10^n, 4*10^n.

Or, numbers n such that the digits of n^3 are decreasing. - Dmitry Kamenetsky, Jun 15 2006

CROSSREFS

Sequence in context: A174175 A127392 A189585 * A167030 A026644 A167193

Adjacent sequences:  A004644 A004645 A004646 * A004648 A004649 A004650

KEYWORD

nonn,base

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 17 14:50 EST 2012. Contains 206050 sequences.