OFFSET
0,3
COMMENTS
Factorials of triangular numbers. - Harvey P. Dale, Aug 13 2012
LINKS
Christian Gaetz, Yibo Gao, Padded Schubert polynomials and weighted enumeration of Bruhat chains, arXiv:1905.00047 [math.CO], 2019. This sequence but shifted: f(n) = binomial(n, 2)!.
FORMULA
MATHEMATICA
Accumulate[Range[0, 10]]! (* Harvey P. Dale, Aug 13 2012 *)
PROG
(Sage) [(factorial(binomial(n, 2))) for n in range(1, 15)] # Zerinvary Lajos, Nov 30 2009
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Jeevan Chana Rai (Karanjit.Rai(AT)btinternet.com), Feb 09 2000
EXTENSIONS
An incorrect formula was deleted by N. J. A. Sloane, Sep 21 2008
STATUS
approved