A127229 a(n)= numerator of ((n + 5)! - (n - 5)!)/(n!).

3628799, 39916799, 239500799, 1037836799, 3632428799, 10897286399, 29059430399, 70572902399, 158789030399, 335221286399, 670442572799, 1279935820799, 2346549004799, 4151586700799, 7117005772799, 11861676287999, 19275223967999, 30613591007999, 47621141567999

Offset: 5

Author

Artur Jasinski, Jan 09 2007

Keywords

• nonn
• frac

Links

• T. D. Noe, Table of n, a(n) for n = 5..1000

Crossrefs

Cf. A028387, A062938, A127227, A127228, A127230.

Programs

Mathematica

Table[Numerator[((n + 5)! - (n - 5)!)/(n!)], {n, 5, 30}]