A341543 - cp's OEIS frontend

A341543 a(n) = sqrt( Product_{j=1..n} Product_{k=1..2} (4sin((2j-1)Pi/(2n))^2 + 4sin((2k-1)*Pi/2)^2) ).

n	a(n)
1	8
2	36
3	200
4	1156
5	6728
6	39204
7	228488
8	1331716
9	7761800
10	45239076
11	263672648
12	1536796804
13	8957108168
14	52205852196
15	304278005000
16	1773462177796
17	10336495061768
18	60245508192804
19	351136554095048
20	2046573816377476
21	11928306344169800

[8, 36, 200, 1156, 6728, 39204, 228488, 1331716, 7761800, 45239076, 263672648, 1536796804, 8957108168, 52205852196, 304278005000, 1773462177796, 10336495061768, 60245508192804, 351136554095048, 2046573816377476, 11928306344169800]

cp's OEIS Frontend

A341543 a(n) = sqrt( Product_{j=1..n} Product_{k=1..2} (4sin((2j-1)Pi/(2n))^2 + 4sin((2k-1)*Pi/2)^2) ).

Table of values

List of values

cp's OEIS Frontend

A341543 a(n) = sqrt( Product_{j=1..n} Product_{k=1..2} (4*sin((2*j-1)*Pi/(2*n))^2 + 4*sin((2*k-1)*Pi/2)^2) ).

Table of values

List of values

A341543 a(n) = sqrt( Product_{j=1..n} Product_{k=1..2} (4sin((2j-1)Pi/(2n))^2 + 4sin((2k-1)*Pi/2)^2) ).