A340561 - cp's OEIS frontend

A340561 Square array T(n,k), n >= 1, k >= 1, read by antidiagonals, where T(n,k) = sqrt( Product_{a=1..n-1} Product_{b=1..k-1} (4sin(aPi/n)^2 + 4cos(bPi/k)^2) ).

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	1
7	1
8	5
9	3
10	1
11	1
12	12
13	16
14	4
15	1
16	1
17	29
18	75
19	45
20	5
21	1
22	1
23	70
24	361
25	384
26	121
27	6
28	1
29	1
30	169
31	1728
32	3509
33	1805
34	320
35	7
36	1
37	1
38	408
39	8281
40	31500
41	30976
42	8100
43	841
44	8
45	1
46	1
47	985
48	39675
49	284089
50	508805
51	261725
52	35287
53	2205
54	9
55	1

[1, 1, 1, 1, 2, 1, 1, 5, 3, 1, 1, 12, 16, 4, 1, 1, 29, 75, 45, 5, 1, 1, 70, 361, 384, 121, 6, 1, 1, 169, 1728, 3509, 1805, 320, 7, 1, 1, 408, 8281, 31500, 30976, 8100, 841, 8, 1, 1, 985, 39675, 284089, 508805, 261725, 35287, 2205, 9, 1]

cp's OEIS Frontend

A340561 Square array T(n,k), n >= 1, k >= 1, read by antidiagonals, where T(n,k) = sqrt( Product_{a=1..n-1} Product_{b=1..k-1} (4sin(aPi/n)^2 + 4cos(bPi/k)^2) ).

Table of values

List of values

cp's OEIS Frontend

A340561 Square array T(n,k), n >= 1, k >= 1, read by antidiagonals, where T(n,k) = sqrt( Product_{a=1..n-1} Product_{b=1..k-1} (4*sin(a*Pi/n)^2 + 4*cos(b*Pi/k)^2) ).

Table of values

List of values

A340561 Square array T(n,k), n >= 1, k >= 1, read by antidiagonals, where T(n,k) = sqrt( Product_{a=1..n-1} Product_{b=1..k-1} (4sin(aPi/n)^2 + 4cos(bPi/k)^2) ).