OFFSET
1,2
LINKS
Alois P. Heinz, Table of n, a(n) for n = 1..2268
FORMULA
a(n) = (2*n-1)!/A067281(2*n-1). - Alois P. Heinz, Dec 11 2023
EXAMPLE
a(5) = 48 = A089080(5) * a(4) = 4 * 12.
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Gary W. Adamson, Feb 23 2012
STATUS
approved