A267177 - cp's OEIS frontend

A267177 Irregular triangle read by rows: successive bottom and right-hand borders of the infinite square array in A072030 (which gives number of subtraction steps needed to compute GCD).

n	a(n)
1	1
2	2
3	1
4	2
5	3
6	3
7	1
8	3
9	3
10	4
11	2
12	4
13	1
14	4
15	2
16	4
17	5
18	4
19	4
20	5
21	1
22	5
23	4
24	4
25	5
26	6
27	3
28	2
29	3
30	6
31	1
32	6
33	3
34	2
35	3
36	6
37	7
38	5
39	5
40	5
41	5
42	7
43	1
44	7
45	5
46	5
47	5
48	5
49	7
50	8
51	4
52	5
53	2
54	5
55	4
56	8
57	1
58	8
59	4
60	5
61	2
62	5
63	4
64	8
65	9
66	6
67	3
68	6
69	6
70	3
71	6
72	9
73	1
74	9
75	6
76	3
77	6
78	6
79	3
80	6
81	9
82	10
83	5
84	6
85	4
86	2
87	4
88	6
89	5
90	10
91	1
92	10
93	5
94	6
95	4
96	2
97	4
98	6
99	5

[1, 2, 1, 2, 3, 3, 1, 3, 3, 4, 2, 4, 1, 4, 2, 4, 5, 4, 4, 5, 1, 5, 4, 4, 5, 6, 3, 2, 3, 6, 1, 6, 3, 2, 3, 6, 7, 5, 5, 5, 5, 7, 1, 7, 5, 5, 5, 5, 7, 8, 4, 5, 2, 5, 4, 8, 1, 8, 4, 5, 2, 5, 4, 8, 9, 6, 3, 6, 6, 3, 6, 9, 1, 9, 6, 3, 6, 6, 3, 6, 9, 10, 5, 6, 4, 2, 4, 6, 5, 10, 1, 10, 5, 6, 4, 2, 4, 6, 5]

cp's OEIS Frontend

A267177 Irregular triangle read by rows: successive bottom and right-hand borders of the infinite square array in A072030 (which gives number of subtraction steps needed to compute GCD).

Table of values

List of values

n	a(n)
1	1
2	2
3	1
4	2
5	3
6	3
7	1
8	3
9	3
10	4
11	2
12	4
13	1
14	4
15	2
16	4
17	5
18	4
19	4
20	5
21	1
22	5
23	4
24	4
25	5
26	6
27	3
28	2
29	3
30	6
31	1
32	6
33	3
34	2
35	3
36	6
37	7
38	5
39	5
40	5
41	5
42	7
43	1
44	7
45	5
46	5
47	5
48	5
49	7
50	8
51	4
52	5
53	2
54	5
55	4
56	8
57	1
58	8
59	4
60	5
61	2
62	5
63	4
64	8
65	9
66	6
67	3
68	6
69	6
70	3
71	6
72	9
73	1
74	9
75	6
76	3
77	6
78	6
79	3
80	6
81	9
82	10
83	5
84	6
85	4
86	2
87	4
88	6
89	5
90	10
91	1
92	10
93	5
94	6
95	4
96	2
97	4
98	6
99	5

n	a(n)
1	1
2	2
3	1
4	2
5	3
6	3
7	1
8	3
9	3
10	4
11	2
12	4
13	1
14	4
15	2
16	4
17	5
18	4
19	4
20	5
21	1
22	5
23	4
24	4
25	5
26	6
27	3
28	2
29	3
30	6
31	1
32	6
33	3
34	2
35	3
36	6
37	7
38	5
39	5
40	5
41	5
42	7
43	1
44	7
45	5
46	5
47	5
48	5
49	7
50	8
51	4
52	5
53	2
54	5
55	4
56	8
57	1
58	8
59	4
60	5
61	2
62	5
63	4
64	8
65	9
66	6
67	3
68	6
69	6
70	3
71	6
72	9
73	1
74	9
75	6
76	3
77	6
78	6
79	3
80	6
81	9
82	10
83	5
84	6
85	4
86	2
87	4
88	6
89	5
90	10
91	1
92	10
93	5
94	6
95	4
96	2
97	4
98	6
99	5

n	a(n)
1	1
2	2
3	1
4	2
5	3
6	3
7	1
8	3
9	3
10	4
11	2
12	4
13	1
14	4
15	2
16	4
17	5
18	4
19	4
20	5
21	1
22	5
23	4
24	4
25	5
26	6
27	3
28	2
29	3
30	6
31	1
32	6
33	3
34	2
35	3
36	6
37	7
38	5
39	5
40	5
41	5
42	7
43	1
44	7
45	5
46	5
47	5
48	5
49	7
50	8
51	4
52	5
53	2
54	5
55	4
56	8
57	1
58	8
59	4
60	5
61	2
62	5
63	4
64	8
65	9
66	6
67	3
68	6
69	6
70	3
71	6
72	9
73	1
74	9
75	6
76	3
77	6
78	6
79	3
80	6
81	9
82	10
83	5
84	6
85	4
86	2
87	4
88	6
89	5
90	10
91	1
92	10
93	5
94	6
95	4
96	2
97	4
98	6
99	5