OFFSET
0,2
COMMENTS
A diagonal of A081130.
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..100
FORMULA
a(n) = n^n*(n+1)*(n+2)/2.
MAPLE
seq(n^n*binomial(n+2, 2), n=0..20); # G. C. Greubel, May 18 2021
MATHEMATICA
Join[{1}, Table[n^n Binomial[n+2, 2], {n, 20}]] (* Harvey P. Dale, Dec 27 2011 *)
PROG
(Magma) [(n^n*Binomial(n+2, 2)): n in [0..20]]; // Vincenzo Librandi, Sep 22 2011
(Sage) [n^n*binomial(n+2, 2) for n in (0..20)] # G. C. Greubel, May 18 2021
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Paul Barry, Mar 08 2003
STATUS
approved