OFFSET
23,2
LINKS
T. D. Noe, Table of n, a(n) for n = 23..1000
Index entries for linear recurrences with constant coefficients, signature (24, -276, 2024, -10626, 42504, -134596, 346104, -735471, 1307504, -1961256, 2496144, -2704156, 2496144, -1961256, 1307504, -735471, 346104, -134596, 42504, -10626, 2024, -276, 24, -1).
FORMULA
a(n) = n/(n-23) * a(n-1) for n > 23. - Vincenzo Librandi, Mar 26 2011
G.f.: x^23/(1-x)^24. - G. C. Greubel, Nov 23 2017
From Amiram Eldar, Dec 11 2020: (Start)
Sum_{n>=23} 1/a(n) = 23/22.
MAPLE
seq(binomial(n, 23), n=23..43); # Zerinvary Lajos, Aug 04 2008
MATHEMATICA
Table[Binomial[n, 23], {n, 23, 50}] (* Vladimir Joseph Stephan Orlovsky, Apr 26 2011 *)
PROG
(Magma) [Binomial(n, 23): n in [23..90]]; // Vincenzo Librandi, Mar 26 2011
(PARI) for(n=23, 50, print1(binomial(n, 23), ", ")) \\ G. C. Greubel, Nov 23 2017
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved