|
|
A272885
|
|
Cubefree taxi-cab numbers.
|
|
20
|
|
|
1729, 20683, 40033, 149389, 195841, 327763, 443889, 684019, 704977, 1845649, 2048391, 2418271, 2691451, 3242197, 3375001, 4342914, 4931101, 5318677, 5772403, 5799339, 6058747, 7620661, 8872487, 9443761, 10702783, 10765603, 13623913, 16387189, 16776487, 16983854, 17045567, 18406603
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
Taxi-cab numbers (A001235) that are not divisible by any cube > 1.
Cubeful taxi-cab numbers are 4104, 13832, 32832, 39312, 46683, 64232, 65728, 110656, 110808, 134379, 165464, 171288, ...
|
|
LINKS
|
|
|
EXAMPLE
|
195841 is a term because 195841 is a member of A001235 and 195841 = 37*67*79.
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|