|
|
A020123
|
|
Ceiling of Gamma(n+2/7)/Gamma(2/7).
|
|
2
|
|
|
1, 1, 1, 1, 3, 12, 63, 393, 2863, 23715, 220205, 2264966, 25561752, 314044379, 4172303890, 59604341273, 911094930877, 14837831731420, 256482519928832, 4689966078698629, 90449345803473559, 1834829586299035049
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
0,5
|
|
LINKS
|
|
|
FORMULA
|
a(n) ~ sqrt(2*Pi)*n^(n-3/14)*exp(-n)/Gamma(2/7). - Robert Israel, Jan 02 2017
|
|
MAPLE
|
Digits := 64:f := proc(n, x) ceil(GAMMA(n+x)/GAMMA(x)); end;
|
|
MATHEMATICA
|
Table[Ceiling[Gamma[n+2/7]/Gamma[2/7]], {n, 0, 30}] (* Harvey P. Dale, Nov 24 2022 *)
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|