A384447 - cp's OEIS frontend

A384447 Array read by ascending antidiagonals: A(n, k) = gcd(n, k) if n > 0 otherwise 0.

n	a(n)
0	0
1	1
2	0
3	2
4	1
5	0
6	3
7	1
8	1
9	0
10	4
11	1
12	2
13	1
14	0
15	5
16	1
17	1
18	1
19	1
20	0
21	6
22	1
23	2
24	3
25	2
26	1
27	0
28	7
29	1
30	1
31	1
32	1
33	1
34	1
35	0
36	8
37	1
38	2
39	1
40	4
41	1
42	2
43	1
44	0
45	9
46	1
47	1
48	3
49	1
50	1
51	3
52	1
53	1
54	0
55	10
56	1
57	2
58	1
59	2
60	5
61	2
62	1
63	2
64	1
65	0
66	11
67	1
68	1
69	1
70	1
71	1
72	1
73	1
74	1
75	1
76	1
77	0
78	12
79	1
80	2
81	3
82	4
83	1
84	6
85	1
86	4
87	3
88	2
89	1
90	0

[0, 1, 0, 2, 1, 0, 3, 1, 1, 0, 4, 1, 2, 1, 0, 5, 1, 1, 1, 1, 0, 6, 1, 2, 3, 2, 1, 0, 7, 1, 1, 1, 1, 1, 1, 0, 8, 1, 2, 1, 4, 1, 2, 1, 0, 9, 1, 1, 3, 1, 1, 3, 1, 1, 0, 10, 1, 2, 1, 2, 5, 2, 1, 2, 1, 0, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 12, 1, 2, 3, 4, 1, 6, 1, 4, 3, 2, 1, 0]

cp's OEIS Frontend

A384447 Array read by ascending antidiagonals: A(n, k) = gcd(n, k) if n > 0 otherwise 0.

Table of values

List of values

n	a(n)
0	0
1	1
2	0
3	2
4	1
5	0
6	3
7	1
8	1
9	0
10	4
11	1
12	2
13	1
14	0
15	5
16	1
17	1
18	1
19	1
20	0
21	6
22	1
23	2
24	3
25	2
26	1
27	0
28	7
29	1
30	1
31	1
32	1
33	1
34	1
35	0
36	8
37	1
38	2
39	1
40	4
41	1
42	2
43	1
44	0
45	9
46	1
47	1
48	3
49	1
50	1
51	3
52	1
53	1
54	0
55	10
56	1
57	2
58	1
59	2
60	5
61	2
62	1
63	2
64	1
65	0
66	11
67	1
68	1
69	1
70	1
71	1
72	1
73	1
74	1
75	1
76	1
77	0
78	12
79	1
80	2
81	3
82	4
83	1
84	6
85	1
86	4
87	3
88	2
89	1
90	0

n	a(n)
0	0
1	1
2	0
3	2
4	1
5	0
6	3
7	1
8	1
9	0
10	4
11	1
12	2
13	1
14	0
15	5
16	1
17	1
18	1
19	1
20	0
21	6
22	1
23	2
24	3
25	2
26	1
27	0
28	7
29	1
30	1
31	1
32	1
33	1
34	1
35	0
36	8
37	1
38	2
39	1
40	4
41	1
42	2
43	1
44	0
45	9
46	1
47	1
48	3
49	1
50	1
51	3
52	1
53	1
54	0
55	10
56	1
57	2
58	1
59	2
60	5
61	2
62	1
63	2
64	1
65	0
66	11
67	1
68	1
69	1
70	1
71	1
72	1
73	1
74	1
75	1
76	1
77	0
78	12
79	1
80	2
81	3
82	4
83	1
84	6
85	1
86	4
87	3
88	2
89	1
90	0

n	a(n)
0	0
1	1
2	0
3	2
4	1
5	0
6	3
7	1
8	1
9	0
10	4
11	1
12	2
13	1
14	0
15	5
16	1
17	1
18	1
19	1
20	0
21	6
22	1
23	2
24	3
25	2
26	1
27	0
28	7
29	1
30	1
31	1
32	1
33	1
34	1
35	0
36	8
37	1
38	2
39	1
40	4
41	1
42	2
43	1
44	0
45	9
46	1
47	1
48	3
49	1
50	1
51	3
52	1
53	1
54	0
55	10
56	1
57	2
58	1
59	2
60	5
61	2
62	1
63	2
64	1
65	0
66	11
67	1
68	1
69	1
70	1
71	1
72	1
73	1
74	1
75	1
76	1
77	0
78	12
79	1
80	2
81	3
82	4
83	1
84	6
85	1
86	4
87	3
88	2
89	1
90	0