A012091 - cp's OEIS frontend

A012091 cos(arcsin(arctan(x)))=1-1/2!x^2+5/4!x^4-109/6!x^6+4521/8!x^8...

n	a(n)
0	1
1	-1
2	5
3	-109
4	4521
5	-330681
6	36468717
7	-5721101541
8	1205289090513
9	-328897528901361
10	112769846051251797
11	-47472161654530776285
12	24068680135210975714425
13	-14466929567049590650593705

[1, -1, 5, -109, 4521, -330681, 36468717, -5721101541, 1205289090513, -328897528901361, 112769846051251797, -47472161654530776285, 24068680135210975714425, -14466929567049590650593705]

cp's OEIS Frontend

A012091 cos(arcsin(arctan(x)))=1-1/2!x^2+5/4!x^4-109/6!x^6+4521/8!x^8...

Table of values

List of values

cp's OEIS Frontend

A012091 cos(arcsin(arctan(x)))=1-1/2!*x^2+5/4!*x^4-109/6!*x^6+4521/8!*x^8...

Table of values

List of values

A012091 cos(arcsin(arctan(x)))=1-1/2!x^2+5/4!x^4-109/6!x^6+4521/8!x^8...