|
|
A263576
|
|
Stirling transform of Fibonacci numbers (A000045).
|
|
6
|
|
|
0, 1, 2, 6, 23, 101, 490, 2597, 14926, 92335, 610503, 4288517, 31848677, 249044068, 2043448968, 17540957166, 157108128963, 1464813176354, 14187155168782, 142469605397465, 1480903718595721, 15908940627242898, 176382950500197589, 2015650339677868116
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
0,3
|
|
LINKS
|
|
|
FORMULA
|
a(n) = Sum_{k=0..n} A000045(k)*Stirling2(n,k).
Sum_{k=0..n} a(k)*Stirling1(n,k) = A000045(n).
Let phi=(1+sqrt(5))/2.
a(n) = (B_n(phi)-B_n(1-phi))/sqrt(5), where B_n(x) is n-th Bell polynomial.
2*B_n(phi) = A263575(n) + a(n)*sqrt(5).
E.g.f.: (exp((exp(x)-1)*phi)-exp((exp(x)-1)*(1-phi)))/sqrt(5).
G.f.: Sum_{j>=1} Fibonacci(j)*x^j / Product_{k=1..j} (1 - k*x). - Ilya Gutkovskiy, Apr 06 2019
|
|
MAPLE
|
b:= proc(n, m) option remember; `if`(n=0, (<<0|1>,
<1|1>>^m)[1, 2], m*b(n-1, m)+b(n-1, m+1))
end:
a:= n-> b(n, 0):
|
|
MATHEMATICA
|
Table[Sum[Fibonacci[k] StirlingS2[n, k], {k, 0, n}], {n, 0, 23}]
Table[Simplify[(BellB[n, GoldenRatio] - BellB[n, 1 - GoldenRatio])/Sqrt[5]], {n, 0, 23}]
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|