|
|
A305659
|
|
Powers of 2 in base 3/2.
|
|
1
|
|
|
1, 2, 21, 212, 21011, 212022, 21200101, 2101100202, 21202202121, 2120012010112, 210110211022111, 2122111011101222, 212001222211110201, 21011210220122222102, 2101100011201022201221, 21202200211121122010012, 2120010121200020001020211, 210110211001100210002212122
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
0,2
|
|
COMMENTS
|
a(n) is A305658(n) with n zeros removed at the end, where A305658(n) is powers of 3 in base 3/2.
|
|
LINKS
|
|
|
FORMULA
|
|
|
MAPLE
|
b:= proc(n) `if`(n<1, 0, irem(n, 3, 'q')+b(2*q)*10) end:
a:= n-> b(2^n):
|
|
PROG
|
(PARI) f(n) = if( n<1, 0, f(n\3 * 2) * 10 + n%3);
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn,base
|
|
AUTHOR
|
|
|
EXTENSIONS
|
|
|
STATUS
|
approved
|
|
|
|