OFFSET
1,2
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..190
FORMULA
Sum_{n>=1} 1/a(n) = A338168. - Amiram Eldar, Nov 29 2020
EXAMPLE
1^2; 3^4; 5^6; 7^8 and so on.
MATHEMATICA
Table[(2 n - 1)^(2 n), {n, 20}] (* T. D. Noe, Feb 26 2013 *)
PROG
(Magma) [(2*n - 1)^(2*n): n in [1..13]]; // Vincenzo Librandi, Feb 26 2013
(PARI) a(n)=(2*n-1)^(2*n) \\ Charles R Greathouse IV, Aug 20 2013
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Dave Durgin, Feb 26 2013
STATUS
approved