|
|
A140892
|
|
a(n) = (n-1)^F(n) - F(n)^(n-1), where F(n) = A000045(n).
|
|
0
|
|
|
0, 0, 0, 0, 399, 357857, 1286604292, 558545862282195466, 5070602400912917604201018916608, 30432527221704537086371993251530170527181380482652674, 99999999999999999999999999999999999999999999999999999999999999999999968818280070033816399
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,5
|
|
LINKS
|
|
|
FORMULA
|
|
|
EXAMPLE
|
a(1) = (1-1)^F(1) - F(1)^(1-1) = 0^1 - 1^0 = 0 - 0 = 0;
a(4) = (4-1)^F(4) - F(4)^(4-1) = 3^3 - 3^3 = 27 - 27 = 0;
a(5) = (5-1)^F(5) - F(5)^(5-1) = 4^5 - 5^4 = 1024 - 625 = 399.
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn,less
|
|
AUTHOR
|
|
|
EXTENSIONS
|
|
|
STATUS
|
approved
|
|
|
|