|
Search: id:A052211
|
|
|
| A052211 |
|
Numbers whose fourth power starts with the same digits as the number. |
|
+0 1
|
|
| 1, 10, 100, 1000, 10000, 46416, 100000, 464159, 1000000, 2154435, 4641589, 10000000, 21544347, 100000000, 1000000000, 10000000000, 100000000000, 1000000000000, 2154434690032, 4641588833613, 10000000000000
(list; graph; listen)
|
|
|
OFFSET
|
0,2
|
|
|
COMMENT
|
Sort[ Table[ 10^i,{i,0,22} ]~Join~Select[ Table[ Ceiling[ 10.^(1/3)*10^i ],{i,0,22} ], Take[ IntegerDigits[ #^4 ],Length[ IntegerDigits[ # ] ] ]==IntegerDigits[ # ]& ]~Join~Select[ Table[ Ceiling[ 10.^(2/3)*10^i ],{i,0,22} ],Take[ IntegerDigits[ #^4 ],Length[ IntegerDigits[ # ] ] ]==IntegerDigits[ # ]& ] ]
|
|
EXAMPLE
|
46416^4 starts with 46416
|
|
CROSSREFS
|
Sequence in context: A136878 A136871 A135653 this_sequence A136845 A136837 A136854
Adjacent sequences: A052208 A052209 A052210 this_sequence A052212 A052213 A052214
|
|
KEYWORD
|
base,easy,nonn
|
|
AUTHOR
|
Erich Friedman (efriedma(AT)stetson.edu), Jan 29 2000
|
|
|
Search completed in 0.002 seconds
|