A034405 - cp's OEIS frontend

A034405 Let f(x) = (Pi - 2arctan(1/(sqrt(x)sqrt(x+2))))/(2sqrt(x)sqrt(x+2)), take (-1)^n*(n-th derivative from right at x=0) and multiply by A001147(n+1).

n	a(n)
0	1
1	2
2	14
3	216
4	5976
5	262800
6	16945200
7	1511395200
8	178458940800
9	26959810348800
10	5071861902240000
11	1162523770531200000
12	318880083535896960000
13	103120648805872938240000
14	38820554918130896951040000
15	16829499728777665273344000000
16	8323409867177396185818624000000
17	4657912954052653582049258496000000

[1, 2, 14, 216, 5976, 262800, 16945200, 1511395200, 178458940800, 26959810348800, 5071861902240000, 1162523770531200000, 318880083535896960000, 103120648805872938240000, 38820554918130896951040000, 16829499728777665273344000000, 8323409867177396185818624000000, 4657912954052653582049258496000000]

cp's OEIS Frontend

A034405 Let f(x) = (Pi - 2arctan(1/(sqrt(x)sqrt(x+2))))/(2sqrt(x)sqrt(x+2)), take (-1)^n*(n-th derivative from right at x=0) and multiply by A001147(n+1).

Table of values

List of values

cp's OEIS Frontend

A034405 Let f(x) = (Pi - 2*arctan(1/(sqrt(x)*sqrt(x+2))))/(2*sqrt(x)*sqrt(x+2)), take (-1)^n*(n-th derivative from right at x=0) and multiply by A001147(n+1).

Table of values

List of values

A034405 Let f(x) = (Pi - 2arctan(1/(sqrt(x)sqrt(x+2))))/(2sqrt(x)sqrt(x+2)), take (-1)^n*(n-th derivative from right at x=0) and multiply by A001147(n+1).