A243813 - cp's OEIS frontend

A243813 Table read by antidiagonals: T(n,k) is the curvature (truncated to integer) of a circle in a variation of nested Pappus chains (see Comments for details).

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	3
6	1
7	1
8	1
9	5
10	1
11	1
12	1
13	2
14	9
15	1
16	1
17	1
18	1
19	3
20	13
21	1
22	1
23	1
24	1
25	2
26	5
27	19
28	1
29	1
30	1
31	1
32	1
33	3
34	7
35	25
36	1
37	1
38	1
39	1
40	1
41	2
42	4
43	9
44	33
45	1
46	1
47	1
48	1
49	1
50	1
51	2
52	5
53	11
54	41
55	1
56	1
57	1
58	1
59	1
60	1
61	2
62	3
63	6
64	14
65	51
66	1
67	1
68	1
69	1
70	1
71	1
72	1
73	2
74	4
75	7
76	17
77	61
78	1
79	1
80	1
81	1
82	1
83	1
84	1
85	2
86	3
87	5
88	9
89	21

[1, 1, 1, 1, 1, 3, 1, 1, 1, 5, 1, 1, 1, 2, 9, 1, 1, 1, 1, 3, 13, 1, 1, 1, 1, 2, 5, 19, 1, 1, 1, 1, 1, 3, 7, 25, 1, 1, 1, 1, 1, 2, 4, 9, 33, 1, 1, 1, 1, 1, 1, 2, 5, 11, 41, 1, 1, 1, 1, 1, 1, 2, 3, 6, 14, 51, 1, 1, 1, 1, 1, 1, 1, 2, 4, 7, 17, 61, 1, 1, 1, 1, 1, 1, 1, 2, 3, 5, 9, 21]

cp's OEIS Frontend

A243813 Table read by antidiagonals: T(n,k) is the curvature (truncated to integer) of a circle in a variation of nested Pappus chains (see Comments for details).

Table of values

List of values

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	3
6	1
7	1
8	1
9	5
10	1
11	1
12	1
13	2
14	9
15	1
16	1
17	1
18	1
19	3
20	13
21	1
22	1
23	1
24	1
25	2
26	5
27	19
28	1
29	1
30	1
31	1
32	1
33	3
34	7
35	25
36	1
37	1
38	1
39	1
40	1
41	2
42	4
43	9
44	33
45	1
46	1
47	1
48	1
49	1
50	1
51	2
52	5
53	11
54	41
55	1
56	1
57	1
58	1
59	1
60	1
61	2
62	3
63	6
64	14
65	51
66	1
67	1
68	1
69	1
70	1
71	1
72	1
73	2
74	4
75	7
76	17
77	61
78	1
79	1
80	1
81	1
82	1
83	1
84	1
85	2
86	3
87	5
88	9
89	21

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	3
6	1
7	1
8	1
9	5
10	1
11	1
12	1
13	2
14	9
15	1
16	1
17	1
18	1
19	3
20	13
21	1
22	1
23	1
24	1
25	2
26	5
27	19
28	1
29	1
30	1
31	1
32	1
33	3
34	7
35	25
36	1
37	1
38	1
39	1
40	1
41	2
42	4
43	9
44	33
45	1
46	1
47	1
48	1
49	1
50	1
51	2
52	5
53	11
54	41
55	1
56	1
57	1
58	1
59	1
60	1
61	2
62	3
63	6
64	14
65	51
66	1
67	1
68	1
69	1
70	1
71	1
72	1
73	2
74	4
75	7
76	17
77	61
78	1
79	1
80	1
81	1
82	1
83	1
84	1
85	2
86	3
87	5
88	9
89	21

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	3
6	1
7	1
8	1
9	5
10	1
11	1
12	1
13	2
14	9
15	1
16	1
17	1
18	1
19	3
20	13
21	1
22	1
23	1
24	1
25	2
26	5
27	19
28	1
29	1
30	1
31	1
32	1
33	3
34	7
35	25
36	1
37	1
38	1
39	1
40	1
41	2
42	4
43	9
44	33
45	1
46	1
47	1
48	1
49	1
50	1
51	2
52	5
53	11
54	41
55	1
56	1
57	1
58	1
59	1
60	1
61	2
62	3
63	6
64	14
65	51
66	1
67	1
68	1
69	1
70	1
71	1
72	1
73	2
74	4
75	7
76	17
77	61
78	1
79	1
80	1
81	1
82	1
83	1
84	1
85	2
86	3
87	5
88	9
89	21