A232441 - cp's OEIS frontend

A232441 Sequence read from antidiagonals of rectangular array given by A(n,k) = 2^(2k)(Sum_{j=1..n-floor(n/2)-1} (cos(jPi/n))^(2k)), rows n >= 3, columns k >= 0.

n	a(n)
3	1
4	1
5	1
6	2
7	2
8	1
9	2
10	3
11	4
12	1
13	3
14	4
15	7
16	8
17	1
18	3
19	5
20	10
21	18
22	16
23	1
24	4
25	6
26	13
27	28
28	47
29	32
30	1
31	4
32	7
33	16
34	38
35	82
36	123
37	64
38	1
39	5
40	8
41	19
42	48
43	117
44	244
45	322
46	128
47	1
48	5
49	9
50	22
51	58
52	152
53	370
54	730
55	843
56	256
57	1
58	6
59	10
60	25
61	68

[1, 1, 1, 2, 2, 1, 2, 3, 4, 1, 3, 4, 7, 8, 1, 3, 5, 10, 18, 16, 1, 4, 6, 13, 28, 47, 32, 1, 4, 7, 16, 38, 82, 123, 64, 1, 5, 8, 19, 48, 117, 244, 322, 128, 1, 5, 9, 22, 58, 152, 370, 730, 843, 256, 1, 6, 10, 25, 68]

cp's OEIS Frontend

A232441 Sequence read from antidiagonals of rectangular array given by A(n,k) = 2^(2k)(Sum_{j=1..n-floor(n/2)-1} (cos(jPi/n))^(2k)), rows n >= 3, columns k >= 0.

Table of values

List of values

n	a(n)
3	1
4	1
5	1
6	2
7	2
8	1
9	2
10	3
11	4
12	1
13	3
14	4
15	7
16	8
17	1
18	3
19	5
20	10
21	18
22	16
23	1
24	4
25	6
26	13
27	28
28	47
29	32
30	1
31	4
32	7
33	16
34	38
35	82
36	123
37	64
38	1
39	5
40	8
41	19
42	48
43	117
44	244
45	322
46	128
47	1
48	5
49	9
50	22
51	58
52	152
53	370
54	730
55	843
56	256
57	1
58	6
59	10
60	25
61	68

n	a(n)
3	1
4	1
5	1
6	2
7	2
8	1
9	2
10	3
11	4
12	1
13	3
14	4
15	7
16	8
17	1
18	3
19	5
20	10
21	18
22	16
23	1
24	4
25	6
26	13
27	28
28	47
29	32
30	1
31	4
32	7
33	16
34	38
35	82
36	123
37	64
38	1
39	5
40	8
41	19
42	48
43	117
44	244
45	322
46	128
47	1
48	5
49	9
50	22
51	58
52	152
53	370
54	730
55	843
56	256
57	1
58	6
59	10
60	25
61	68

cp's OEIS Frontend

A232441 Sequence read from antidiagonals of rectangular array given by A(n,k) = 2^(2*k)*(Sum_{j=1..n-floor(n/2)-1} (cos(j*Pi/n))^(2*k)), rows n >= 3, columns k >= 0.

Table of values

List of values

A232441 Sequence read from antidiagonals of rectangular array given by A(n,k) = 2^(2k)(Sum_{j=1..n-floor(n/2)-1} (cos(jPi/n))^(2k)), rows n >= 3, columns k >= 0.

n	a(n)
3	1
4	1
5	1
6	2
7	2
8	1
9	2
10	3
11	4
12	1
13	3
14	4
15	7
16	8
17	1
18	3
19	5
20	10
21	18
22	16
23	1
24	4
25	6
26	13
27	28
28	47
29	32
30	1
31	4
32	7
33	16
34	38
35	82
36	123
37	64
38	1
39	5
40	8
41	19
42	48
43	117
44	244
45	322
46	128
47	1
48	5
49	9
50	22
51	58
52	152
53	370
54	730
55	843
56	256
57	1
58	6
59	10
60	25
61	68