A170920 - cp's OEIS frontend

A170920 Write xcot(x) = Product_{n>=1} (1 + g_nx^(2*n)); a(n) = numerator(g_n).

n	a(n)
1	-1
2	-1
3	-1
4	-16
5	-91
6	-58844
7	-73267
8	-1196588
9	-49830764
10	-1715330699
11	-35249288479
12	-374085503198546
13	-732125336837021
14	-779432268293710651
15	-30015706187367326893
16	-183998031852529374082
17	-46789354983174555461
18	-115977125342651266593554
19	-248130101882943187003954597
20	-13171311382437535379302071714878

[-1, -1, -1, -16, -91, -58844, -73267, -1196588, -49830764, -1715330699, -35249288479, -374085503198546, -732125336837021, -779432268293710651, -30015706187367326893, -183998031852529374082, -46789354983174555461, -115977125342651266593554, -248130101882943187003954597, -13171311382437535379302071714878]

cp's OEIS Frontend

A170920 Write xcot(x) = Product_{n>=1} (1 + g_nx^(2*n)); a(n) = numerator(g_n).

Table of values

List of values

cp's OEIS Frontend

A170920 Write x*cot(x) = Product_{n>=1} (1 + g_n*x^(2*n)); a(n) = numerator(g_n).

Table of values

List of values

A170920 Write xcot(x) = Product_{n>=1} (1 + g_nx^(2*n)); a(n) = numerator(g_n).