A170921 - cp's OEIS frontend

A170921 Write xcot(x) = Product_{n>=1} (1 + g_nx^(2*n)); a(n) = denominator(g_n).

n	a(n)
1	3
2	45
3	105
4	4725
5	66825
6	127702575
7	383107725
8	18091198125
9	1856156927625
10	183759535834875
11	9056719980433125
12	275344870859667984375
13	1298054391195577640625
14	3952575621190533915703125
15	367589532770719654160390625
16	6249022057102234120726640625
17	3842566358093920359949921875

[3, 45, 105, 4725, 66825, 127702575, 383107725, 18091198125, 1856156927625, 183759535834875, 9056719980433125, 275344870859667984375, 1298054391195577640625, 3952575621190533915703125, 367589532770719654160390625, 6249022057102234120726640625, 3842566358093920359949921875]

cp's OEIS Frontend

A170921 Write xcot(x) = Product_{n>=1} (1 + g_nx^(2*n)); a(n) = denominator(g_n).

Table of values

List of values

cp's OEIS Frontend

A170921 Write x*cot(x) = Product_{n>=1} (1 + g_n*x^(2*n)); a(n) = denominator(g_n).

Table of values

List of values

A170921 Write xcot(x) = Product_{n>=1} (1 + g_nx^(2*n)); a(n) = denominator(g_n).