|
| |
|
|
A274600
|
|
Coefficients in an asymptotic expansion of sequence A002893.
|
|
2
|
|
|
|
1, -1, 1, 2, 7, 59, 616, 6992, 90847, 1352549, 22591681, 417527582, 8465505412, 186906393764, 4463901355096, 114672825810272, 3153127461349327, 92405864554182329, 2875362251645606611, 94680648376734042062, 3289274269898822961967, 120235993277078434540619
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
0,4
|
|
|
LINKS
|
|
|
|
FORMULA
|
Conjecture: a(n) ~ (2/log(3))^n * (n-1)! / (Pi*sqrt(3)).
|
|
|
EXAMPLE
|
A002893(n) ~ 3^(2*n+3/2)/(4*Pi*n) * (1 - 1/(4*n) + 1/(4*n)^2 + 2/(4*n)^3 + 7/(4*n)^4 + 59/(4*n)^5 + ...)
|
|
|
CROSSREFS
|
|
|
|
KEYWORD
|
sign
|
|
|
AUTHOR
|
|
|
|
STATUS
|
approved
|
| |
|
|
