|
|
A114574
|
|
a(n) = p*p! where p = prime(n).
|
|
2
|
|
|
4, 18, 600, 35280, 439084800, 80951270400, 6046686277632000, 2311256907767808000, 594596384994354462720000, 256411097818451356681764864000000, 254907998279515607349492449280000000, 509258864375374766713691244518493388800000000, 1371553591139716091434972544191070818271232000000000
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
REFERENCES
|
Originally published on Nov 09 2004 by indiejade(AT)gmail.com
|
|
LINKS
|
|
|
FORMULA
|
|
|
EXAMPLE
|
2 * 2! = 4, 3 * 3! = 18, 5 * 5! = 600.
|
|
MATHEMATICA
|
|
|
PROG
|
(Python)
from sympy import factorial, prime
def a(n): p = prime(n); return p * factorial(p)
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
L. Shawnee Cook (shawneecook(AT)gmail.com), Feb 17 2006
|
|
STATUS
|
approved
|
|
|
|