|
|
A063632
|
|
Smallest k such that 9^k has exactly n 6's in its decimal representation.
|
|
0
|
|
|
1, 7, 4, 20, 26, 24, 39, 17, 59, 65, 72, 97, 69, 121, 141, 104, 125, 136, 132, 147, 144, 163, 179, 161, 177, 184, 208, 191, 257, 193, 262, 281, 294, 267, 318, 334, 297, 347, 319, 310, 369, 315, 365, 349, 399, 387, 383, 414, 373, 408, 434
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
0,2
|
|
LINKS
|
|
|
MATHEMATICA
|
a = {}; Do[k = 1; While[ Count[ IntegerDigits[9^k], 6] != n, k++ ]; a = Append[a, k], {n, 0, 50} ]; a
|
|
CROSSREFS
|
|
|
KEYWORD
|
base,nonn
|
|
AUTHOR
|
|
|
EXTENSIONS
|
|
|
STATUS
|
approved
|
|
|
|