|
| |
|
|
A356132
|
|
Least integer with n pentagonal divisors.
|
|
3
|
|
|
|
1, 5, 35, 70, 210, 420, 2310, 4620, 18480, 32340, 60060, 120120, 240240, 720720, 1261260, 1141140, 2042040, 4084080, 4564560, 13693680, 19399380, 58198140, 95855760, 38798760, 116396280, 193993800, 77597520, 232792560, 543182640, 387987600, 1125164040
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,2
|
|
|
LINKS
|
|
|
|
PROG
|
(PARI) a(n) = my(k=1); while (sumdiv(k, d, ispolygonal(d, 5)) != n, k++); k;
(C) See Links section.
|
|
|
CROSSREFS
|
|
|
|
KEYWORD
|
nonn
|
|
|
AUTHOR
|
|
|
|
EXTENSIONS
|
|
|
|
STATUS
|
approved
|
| |
|
|
