OFFSET
4,1
LINKS
Robert Israel, Table of n, a(n) for n = 4..10000
FORMULA
a(n) = (n+4) * (n+3) * (n+2) * (n+1) * n * (n-1) * (n-2) * (n-3) - 1. - Robert Israel, Nov 20 2023
MAPLE
f::= n -> (n+4)*(n+3)*(n+2)*(n+1)*n*(n-1)*(n-2)*(n-3)-1:
map(f, [$4..30]); # Robert Israel, Nov 20 2023
MATHEMATICA
Table[Numerator[((n + 4)! - (n - 4)!)/(n!)], {n, 4, 30}]
CROSSREFS
KEYWORD
nonn,frac
AUTHOR
Artur Jasinski, Jan 09 2007
STATUS
approved