A177382 - cp's OEIS frontend

A177382 E.g.f.: Sum_{n>=0} Product_{k=1..n} tan(k*x).

n	a(n)
0	1
1	1
2	4
3	38
4	656
5	17776
6	695104
7	37049648
8	2581673216
9	227817246976
10	24829660693504
11	3275474443371008
12	514345822537650176
13	94806411271686270976
14	20269838348763427323904
15	4975513260049237751994368

[1, 1, 4, 38, 656, 17776, 695104, 37049648, 2581673216, 227817246976, 24829660693504, 3275474443371008, 514345822537650176, 94806411271686270976, 20269838348763427323904, 4975513260049237751994368]

cp's OEIS Frontend

A177382 E.g.f.: Sum_{n>=0} Product_{k=1..n} tan(k*x).

Table of values

List of values