OFFSET
0,1
COMMENTS
Can be used to detect triangular tables whose rows sum to n! when decreased by 1.
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..200
R. C. Castillo, On the Sum of Corresponding Factorials and Triangular Numbers: Runsums, Trapezoids and Politeness, Asia Pacific Journal of Multidisciplinary Research, 3 (2015), 95-101.
Aria Chen, Tyler Cummins, Rishi De Francesco, Jate Greene, Tanya Khovanova, Alexander Meng, Tanish Parida, Anirudh Pulugurtha, Anand Swaroop, and Samuel Tsui, Card Tricks and Information, arXiv:2405.21007 [math.HO], 2024. See p. 5.
MATHEMATICA
Table[n! + n + 1, {n, 0, 20}]
PROG
(Maxima) A213169(n):=n!+n+1$
makelist(A213169(n), n, 0, 30); /* Martin Ettl, Nov 03 2012 */
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Olivier Gérard, Nov 02 2012
STATUS
approved
