A340475 - cp's OEIS frontend

A340475 Square array T(n,k), n >= 0, k >= 0, read by antidiagonals, where T(n,k) = Product_{a=1..n} Product_{b=1..k} (4sin(aPi/(2n+1))^2 + 4sin(bPi/(2k+1))^2).

n	a(n)
0	1
1	1
2	1
3	1
4	6
5	1
6	1
7	29
8	29
9	1
10	1
11	139
12	500
13	139
14	1
15	1
16	666
17	8329
18	8329
19	666
20	1
21	1
22	3191
23	138301
24	463736
25	138301
26	3191
27	1
28	1
29	15289
30	2295701
31	25543057
32	25543057
33	2295701
34	15289
35	1
36	1
37	73254
38	38105729
39	1404312491
40	4614756624
41	1404312491
42	38105729
43	73254
44	1

[1, 1, 1, 1, 6, 1, 1, 29, 29, 1, 1, 139, 500, 139, 1, 1, 666, 8329, 8329, 666, 1, 1, 3191, 138301, 463736, 138301, 3191, 1, 1, 15289, 2295701, 25543057, 25543057, 2295701, 15289, 1, 1, 73254, 38105729, 1404312491, 4614756624, 1404312491, 38105729, 73254, 1]

cp's OEIS Frontend

A340475 Square array T(n,k), n >= 0, k >= 0, read by antidiagonals, where T(n,k) = Product_{a=1..n} Product_{b=1..k} (4sin(aPi/(2n+1))^2 + 4sin(bPi/(2k+1))^2).

Table of values

List of values

cp's OEIS Frontend

A340475 Square array T(n,k), n >= 0, k >= 0, read by antidiagonals, where T(n,k) = Product_{a=1..n} Product_{b=1..k} (4*sin(a*Pi/(2*n+1))^2 + 4*sin(b*Pi/(2*k+1))^2).

Table of values

List of values

A340475 Square array T(n,k), n >= 0, k >= 0, read by antidiagonals, where T(n,k) = Product_{a=1..n} Product_{b=1..k} (4sin(aPi/(2n+1))^2 + 4sin(bPi/(2k+1))^2).