A012008 - cp's OEIS frontend

A012008 sec(log(cos(x)))= 1+3/4!x^4+30/6!x^6+1113/8!x^8+50460/10!x^10...

n	a(n)
0	1
1	0
2	3
3	30
4	1113
5	50460
6	3693723
7	359740290
8	46791574833
9	7721990402520
10	1584990509251443
11	395230316479830150
12	117766463267804780553
13	41313542582787780576180
14	16856003114804522914769163

[1, 0, 3, 30, 1113, 50460, 3693723, 359740290, 46791574833, 7721990402520, 1584990509251443, 395230316479830150, 117766463267804780553, 41313542582787780576180, 16856003114804522914769163]

cp's OEIS Frontend

A012008 sec(log(cos(x)))= 1+3/4!x^4+30/6!x^6+1113/8!x^8+50460/10!x^10...

Table of values

List of values

cp's OEIS Frontend

A012008 sec(log(cos(x)))= 1+3/4!*x^4+30/6!*x^6+1113/8!*x^8+50460/10!*x^10...

Table of values

List of values

A012008 sec(log(cos(x)))= 1+3/4!x^4+30/6!x^6+1113/8!x^8+50460/10!x^10...