OFFSET
1,4
LINKS
G. C. Greubel, Table of n, a(n) for n = 1..10000
MATHEMATICA
With[{b = Sqrt[E]}, Table[If[n == 1, Floor[b], Floor[n!*b] - n*Floor[(n - 1)!*b]], {n, 1, 100}]] (* G. C. Greubel, Nov 26 2018 *)
PROG
(PARI) vector(30, n, if(n>1, t=t%1*n, t=exp(.5))\1) \\ M. F. Hasler, Nov 25 2018
(PARI) default(realprecision, 250); b = sqrt(exp(1)); for(n=1, 80, print1(if(n==1, floor(b), floor(n!*b) - n*floor((n-1)!*b)), ", ")) \\ G. C. Greubel, Nov 26 2018
(Magma) SetDefaultRealField(RealField(250)); [Floor(Sqrt(Exp(1)))] cat [Floor(Factorial(n)*Sqrt(Exp(1))) - n*Floor(Factorial((n-1))* Sqrt(Exp(1))) : n in [2..80]]; // G. C. Greubel, Nov 26 2018
(Sage)
def A068453(n):
if (n==1): return floor(sqrt(e))
else: return expand(floor(factorial(n)*sqrt(e)) - n*floor(factorial(n-1)*sqrt(e)))
[A068453(n) for n in (1..80)] # G. C. Greubel, Nov 26 2018
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Benoit Cloitre, Mar 10 2002
EXTENSIONS
Name edited and keyword cons removed by M. F. Hasler, Nov 25 2018
STATUS
approved