A113550 - cp's OEIS frontend

A113550 a(n) = product of n successive numbers up to n, if n is odd a(n) = n(n-1).. = n!, if n is even a(n) = n(n+1)(n+2)... 'n' terms.

n	a(n)
1	1
2	6
3	6
4	840
5	120
6	332640
7	5040
8	259459200
9	362880
10	335221286400
11	39916800
12	647647525324800
13	6227020800
14	1748648318376960000
15	1307674368000
16	6288139352883548160000
17	355687428096000
18	29051203810321992499200000
19	121645100408832000
20	167683548393178540705382400000

[1, 6, 6, 840, 120, 332640, 5040, 259459200, 362880, 335221286400, 39916800, 647647525324800, 6227020800, 1748648318376960000, 1307674368000, 6288139352883548160000, 355687428096000, 29051203810321992499200000, 121645100408832000, 167683548393178540705382400000]

cp's OEIS Frontend

A113550 a(n) = product of n successive numbers up to n, if n is odd a(n) = n(n-1).. = n!, if n is even a(n) = n(n+1)(n+2)... 'n' terms.

Table of values

List of values

cp's OEIS Frontend

A113550 a(n) = product of n successive numbers up to n, if n is odd a(n) = n*(n-1)*.. = n!, if n is even a(n) = n(n+1)(n+2)... 'n' terms.

Table of values

List of values

A113550 a(n) = product of n successive numbers up to n, if n is odd a(n) = n(n-1).. = n!, if n is even a(n) = n(n+1)(n+2)... 'n' terms.