OFFSET
1,1
LINKS
Daniel Suteu, Table of n, a(n) for n = 1..20
FORMULA
a(n) = n^(n-1) * (n+1)^n.
a(n) ~ e * n^(2n-1). - Charles R Greathouse IV, May 28 2015
EXAMPLE
a(3) = (3+1)^3 * 3^(3-1) = 4^3 * 3^2 = 64 * 9 = 576.
MATHEMATICA
Table[n^(n - 1)*(n + 1)^n, {n, 16}] (* Michael De Vlieger, May 28 2015 *)
PROG
(Sidef)
func a(n) {
(n+1)**n * n**(n-1);
};
1.to(Math.inf).each { |n|
say a(n);
};
(PARI) a(n)=n^(n-1)*(n+1)^n \\ Charles R Greathouse IV, May 28 2015
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Daniel Suteu, May 28 2015
EXTENSIONS
More terms from Michael De Vlieger, May 28 2015
STATUS
approved