A340560 - cp's OEIS frontend

A340560 Square array T(n,k), n >= 1, k >= 1, read by antidiagonals, where T(n,k) = Product_{a=1..n-1} Product_{b=1..k-1} (4sin(aPi/n)^2 + 4sin(bPi/k)^2).

n	a(n)
1	1
2	1
3	1
4	1
5	8
6	1
7	1
8	49
9	49
10	1
11	1
12	288
13	1296
14	288
15	1
16	1
17	1681
18	30625
19	30625
20	1681
21	1
22	1
23	9800
24	707281
25	2654208
26	707281
27	9800
28	1
29	1
30	57121
31	16257024
32	219069601
33	219069601
34	16257024
35	57121
36	1
37	1
38	332928
39	373301041
40	17860500000
41	62500000000
42	17860500000
43	373301041
44	332928
45	1

[1, 1, 1, 1, 8, 1, 1, 49, 49, 1, 1, 288, 1296, 288, 1, 1, 1681, 30625, 30625, 1681, 1, 1, 9800, 707281, 2654208, 707281, 9800, 1, 1, 57121, 16257024, 219069601, 219069601, 16257024, 57121, 1, 1, 332928, 373301041, 17860500000, 62500000000, 17860500000, 373301041, 332928, 1]

cp's OEIS Frontend

A340560 Square array T(n,k), n >= 1, k >= 1, read by antidiagonals, where T(n,k) = Product_{a=1..n-1} Product_{b=1..k-1} (4sin(aPi/n)^2 + 4sin(bPi/k)^2).

Table of values

List of values

cp's OEIS Frontend

A340560 Square array T(n,k), n >= 1, k >= 1, read by antidiagonals, where T(n,k) = Product_{a=1..n-1} Product_{b=1..k-1} (4*sin(a*Pi/n)^2 + 4*sin(b*Pi/k)^2).

Table of values

List of values

A340560 Square array T(n,k), n >= 1, k >= 1, read by antidiagonals, where T(n,k) = Product_{a=1..n-1} Product_{b=1..k-1} (4sin(aPi/n)^2 + 4sin(bPi/k)^2).