A243618 - cp's OEIS frontend

A243618 Table read by antidiagonals: T(n,k) is the curvature of a circle in a nested Pappus chain (see Comments for details).

n	a(n)
0	2
1	6
2	3
3	12
4	7
5	6
6	20
7	13
8	10
9	11
10	30
11	21
12	16
13	15
14	18
15	42
16	31
17	24
18	21
19	22
20	27
21	56
22	43
23	34
24	29
25	28
26	31
27	38
28	72
29	57
30	46
31	39
32	36
33	37
34	42
35	51
36	90
37	73
38	60
39	51
40	46
41	45
42	48
43	55
44	66
45	110
46	91
47	76
48	65
49	58
50	55
51	56
52	61
53	70
54	83
55	132

[2, 6, 3, 12, 7, 6, 20, 13, 10, 11, 30, 21, 16, 15, 18, 42, 31, 24, 21, 22, 27, 56, 43, 34, 29, 28, 31, 38, 72, 57, 46, 39, 36, 37, 42, 51, 90, 73, 60, 51, 46, 45, 48, 55, 66, 110, 91, 76, 65, 58, 55, 56, 61, 70, 83, 132]

cp's OEIS Frontend

A243618 Table read by antidiagonals: T(n,k) is the curvature of a circle in a nested Pappus chain (see Comments for details).

Table of values

List of values

n	a(n)
0	2
1	6
2	3
3	12
4	7
5	6
6	20
7	13
8	10
9	11
10	30
11	21
12	16
13	15
14	18
15	42
16	31
17	24
18	21
19	22
20	27
21	56
22	43
23	34
24	29
25	28
26	31
27	38
28	72
29	57
30	46
31	39
32	36
33	37
34	42
35	51
36	90
37	73
38	60
39	51
40	46
41	45
42	48
43	55
44	66
45	110
46	91
47	76
48	65
49	58
50	55
51	56
52	61
53	70
54	83
55	132

n	a(n)
0	2
1	6
2	3
3	12
4	7
5	6
6	20
7	13
8	10
9	11
10	30
11	21
12	16
13	15
14	18
15	42
16	31
17	24
18	21
19	22
20	27
21	56
22	43
23	34
24	29
25	28
26	31
27	38
28	72
29	57
30	46
31	39
32	36
33	37
34	42
35	51
36	90
37	73
38	60
39	51
40	46
41	45
42	48
43	55
44	66
45	110
46	91
47	76
48	65
49	58
50	55
51	56
52	61
53	70
54	83
55	132

n	a(n)
0	2
1	6
2	3
3	12
4	7
5	6
6	20
7	13
8	10
9	11
10	30
11	21
12	16
13	15
14	18
15	42
16	31
17	24
18	21
19	22
20	27
21	56
22	43
23	34
24	29
25	28
26	31
27	38
28	72
29	57
30	46
31	39
32	36
33	37
34	42
35	51
36	90
37	73
38	60
39	51
40	46
41	45
42	48
43	55
44	66
45	110
46	91
47	76
48	65
49	58
50	55
51	56
52	61
53	70
54	83
55	132