reviewed
approved
reviewed
approved
proposed
reviewed
editing
proposed
INRIA Algorithms Project, <a href="http://ecs.inria.fr/services/structure?nbr=265">Encyclopedia of Combinatorial Structures 265</a>.
Wolfdieter Lang, <a href="https://cs.uwaterloo.ca/journals/JIS/VOL3/LANG/lang.html">On generalizations of Stirling number triangles</a>, J. Integer Seqs., Vol. 3 (2000), #Article 00.2.4.
<a href="/index/DiFa#divseqfactorial">Index to divisibility entries for sequences related to factorial numbers</a>.
<a href="/index/FaDi#factorialdivseq">Index entries for to divisibility sequences related to factorial numbers</a>.
From Amiram Eldar, Jan 15 2023: (Start)
Sum_{n>=5} 1/a(n) = 120*e - 325.
Sum_{n>=5} (-1)^(n+1)/a(n) = 45 - 120/e. (End)
approved
editing
(MAGMAMagma) [Factorial(n)/120: n in [5..25]]; // Vincenzo Librandi, Jul 20 2011
proposed
approved
editing
proposed
a(n) = A173333(n,5). - Reinhard Zumkeller, Feb 19 2010
a(n) = A245334(n,n-5) / 6. - Reinhard Zumkeller, Aug 31 2014
W. Wolfdieter Lang, <a href="httphttps://www.cs.uwaterloo.ca/journals/JIS/indexVOL3/LANG
a(n) = A173333(n,5). - Reinhard Zumkeller, Feb 19 2010
a(n) = A245334(n,n-5) / 6. - Reinhard Zumkeller, Aug 31 2014
a(n) = n!/5!.
Mitrinovic, D. S.; Mitrinovic, R. S.; Tableaux d'une classe de nombres relies aux nombres de Stirling. II. Univ. Beograd. Publ. Elektrotehn. Fak. Ser. Mat. Fiz. No. 107-108 1963 1-77.
D. S. Mitrinovic and R. S. Mitrinovic, <a href="http://pefmath2.etf.rs/files/54/107.pdf">Tableaux d'une classe de nombres reliƩs aux nombres de Stirling. II</a>, Univ. Beograd. Publ. Elektrotehn. Fak. Ser. Mat. Fiz. No. 107-108 1963 1-77.
proposed
editing
editing
proposed