|
|
A284997
|
|
Ceiling(Gamma(n/3)).
|
|
2
|
|
|
3, 2, 1, 1, 1, 1, 2, 2, 2, 3, 5, 6, 10, 15, 24, 41, 69, 120, 215, 390, 720, 1356, 2594, 5040, 9941, 19885, 40320, 82835, 172329, 362880, 773119, 1665838, 3628800, 7988888, 17768939, 39916800, 90540730, 207304279, 479001600, 1116669004, 2625854189, 6227020800
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
There are two integer-valued interpolations between successive factorials.
|
|
LINKS
|
|
|
FORMULA
|
a(n) = ceiling(Gamma(n/3)).
|
|
MATHEMATICA
|
Table[Ceiling[Gamma[n/3]], {n, 1, 35}]
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn,easy
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|