A357216 - cp's OEIS frontend

A357216 Table read by antidiagonals: T(n,k) (n >= 3, k >= 0) is the number of regions in an n-gon when k internal n-gons are drawn between the n*k points that divide each side into k+1 equal parts.

n	a(n)
3	1
4	4
5	1
6	13
7	5
8	1
9	28
10	17
11	6
12	1
13	49
14	37
15	21
16	7
17	1
18	70
19	65
20	46
21	25
22	8
23	1
24	109
25	93
26	81
27	55
28	29
29	9
30	1
31	148
32	145
33	126
34	97
35	64
36	33
37	10
38	1
39	181
40	181
41	181
42	151
43	113
44	73
45	37
46	11
47	1
48	244
49	257
50	246
51	217
52	176
53	129
54	82
55	41
56	12
57	1
58	301
59	309
60	321
61	295
62	253
63	201
64	145
65	91
66	45
67	13
68	1

[1, 4, 1, 13, 5, 1, 28, 17, 6, 1, 49, 37, 21, 7, 1, 70, 65, 46, 25, 8, 1, 109, 93, 81, 55, 29, 9, 1, 148, 145, 126, 97, 64, 33, 10, 1, 181, 181, 181, 151, 113, 73, 37, 11, 1, 244, 257, 246, 217, 176, 129, 82, 41, 12, 1, 301, 309, 321, 295, 253, 201, 145, 91, 45, 13, 1]

cp's OEIS Frontend

A357216 Table read by antidiagonals: T(n,k) (n >= 3, k >= 0) is the number of regions in an n-gon when k internal n-gons are drawn between the n*k points that divide each side into k+1 equal parts.

Table of values

List of values

n	a(n)
3	1
4	4
5	1
6	13
7	5
8	1
9	28
10	17
11	6
12	1
13	49
14	37
15	21
16	7
17	1
18	70
19	65
20	46
21	25
22	8
23	1
24	109
25	93
26	81
27	55
28	29
29	9
30	1
31	148
32	145
33	126
34	97
35	64
36	33
37	10
38	1
39	181
40	181
41	181
42	151
43	113
44	73
45	37
46	11
47	1
48	244
49	257
50	246
51	217
52	176
53	129
54	82
55	41
56	12
57	1
58	301
59	309
60	321
61	295
62	253
63	201
64	145
65	91
66	45
67	13
68	1

n	a(n)
3	1
4	4
5	1
6	13
7	5
8	1
9	28
10	17
11	6
12	1
13	49
14	37
15	21
16	7
17	1
18	70
19	65
20	46
21	25
22	8
23	1
24	109
25	93
26	81
27	55
28	29
29	9
30	1
31	148
32	145
33	126
34	97
35	64
36	33
37	10
38	1
39	181
40	181
41	181
42	151
43	113
44	73
45	37
46	11
47	1
48	244
49	257
50	246
51	217
52	176
53	129
54	82
55	41
56	12
57	1
58	301
59	309
60	321
61	295
62	253
63	201
64	145
65	91
66	45
67	13
68	1

n	a(n)
3	1
4	4
5	1
6	13
7	5
8	1
9	28
10	17
11	6
12	1
13	49
14	37
15	21
16	7
17	1
18	70
19	65
20	46
21	25
22	8
23	1
24	109
25	93
26	81
27	55
28	29
29	9
30	1
31	148
32	145
33	126
34	97
35	64
36	33
37	10
38	1
39	181
40	181
41	181
42	151
43	113
44	73
45	37
46	11
47	1
48	244
49	257
50	246
51	217
52	176
53	129
54	82
55	41
56	12
57	1
58	301
59	309
60	321
61	295
62	253
63	201
64	145
65	91
66	45
67	13
68	1