A000816 - cp's OEIS frontend

A000816 E.g.f.: Sum_{n >= 0} a(n) * x^(2n) / (2n)! = sin(x)^2 / cos(2*x).

n	a(n)
0	0
1	2
2	40
3	1952
4	177280
5	25866752
6	5535262720
7	1633165156352
8	635421069967360
9	315212388819402752
10	194181169538675507200
11	145435130631317935357952
12	130145345400688287667978240
13	137139396592145493713802493952

[0, 2, 40, 1952, 177280, 25866752, 5535262720, 1633165156352, 635421069967360, 315212388819402752, 194181169538675507200, 145435130631317935357952, 130145345400688287667978240, 137139396592145493713802493952]

cp's OEIS Frontend

A000816 E.g.f.: Sum_{n >= 0} a(n) * x^(2n) / (2n)! = sin(x)^2 / cos(2*x).

Table of values

List of values

cp's OEIS Frontend

A000816 E.g.f.: Sum_{n >= 0} a(n) * x^(2*n) / (2*n)! = sin(x)^2 / cos(2*x).

Table of values

List of values

A000816 E.g.f.: Sum_{n >= 0} a(n) * x^(2n) / (2n)! = sin(x)^2 / cos(2*x).