A161906 - cp's OEIS frontend

A161906 Triangle read by rows in which row n lists the divisors of n that are <= sqrt(n).

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	1
7	1
8	2
9	1
10	1
11	2
12	1
13	3
14	1
15	2
16	1
17	1
18	2
19	3
20	1
21	1
22	2
23	1
24	3
25	1
26	2
27	4
28	1
29	1
30	2
31	3
32	1
33	1
34	2
35	4
36	1
37	3
38	1
39	2
40	1
41	1
42	2
43	3
44	4
45	1
46	5
47	1
48	2
49	1
50	3
51	1
52	2
53	4
54	1
55	1
56	2
57	3
58	5
59	1
60	1
61	2
62	4
63	1
64	3
65	1
66	2
67	1
68	5
69	1
70	2
71	3
72	4
73	6
74	1
75	1
76	2
77	1
78	3
79	1
80	2
81	4
82	5
83	1
84	1
85	2
86	3
87	6
88	1
89	1
90	2
91	4
92	1
93	3
94	5
95	1
96	2
97	1
98	1
99	2
100	3

[1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 3, 1, 2, 1, 1, 2, 3, 1, 1, 2, 1, 3, 1, 2, 4, 1, 1, 2, 3, 1, 1, 2, 4, 1, 3, 1, 2, 1, 1, 2, 3, 4, 1, 5, 1, 2, 1, 3, 1, 2, 4, 1, 1, 2, 3, 5, 1, 1, 2, 4, 1, 3, 1, 2, 1, 5, 1, 2, 3, 4, 6, 1, 1, 2, 1, 3, 1, 2, 4, 5, 1, 1, 2, 3, 6, 1, 1, 2, 4, 1, 3, 5, 1, 2, 1, 1, 2, 3]

cp's OEIS Frontend

A161906 Triangle read by rows in which row n lists the divisors of n that are <= sqrt(n).

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	1
7	1
8	2
9	1
10	1
11	2
12	1
13	3
14	1
15	2
16	1
17	1
18	2
19	3
20	1
21	1
22	2
23	1
24	3
25	1
26	2
27	4
28	1
29	1
30	2
31	3
32	1
33	1
34	2
35	4
36	1
37	3
38	1
39	2
40	1
41	1
42	2
43	3
44	4
45	1
46	5
47	1
48	2
49	1
50	3
51	1
52	2
53	4
54	1
55	1
56	2
57	3
58	5
59	1
60	1
61	2
62	4
63	1
64	3
65	1
66	2
67	1
68	5
69	1
70	2
71	3
72	4
73	6
74	1
75	1
76	2
77	1
78	3
79	1
80	2
81	4
82	5
83	1
84	1
85	2
86	3
87	6
88	1
89	1
90	2
91	4
92	1
93	3
94	5
95	1
96	2
97	1
98	1
99	2
100	3

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	1
7	1
8	2
9	1
10	1
11	2
12	1
13	3
14	1
15	2
16	1
17	1
18	2
19	3
20	1
21	1
22	2
23	1
24	3
25	1
26	2
27	4
28	1
29	1
30	2
31	3
32	1
33	1
34	2
35	4
36	1
37	3
38	1
39	2
40	1
41	1
42	2
43	3
44	4
45	1
46	5
47	1
48	2
49	1
50	3
51	1
52	2
53	4
54	1
55	1
56	2
57	3
58	5
59	1
60	1
61	2
62	4
63	1
64	3
65	1
66	2
67	1
68	5
69	1
70	2
71	3
72	4
73	6
74	1
75	1
76	2
77	1
78	3
79	1
80	2
81	4
82	5
83	1
84	1
85	2
86	3
87	6
88	1
89	1
90	2
91	4
92	1
93	3
94	5
95	1
96	2
97	1
98	1
99	2
100	3

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	1
7	1
8	2
9	1
10	1
11	2
12	1
13	3
14	1
15	2
16	1
17	1
18	2
19	3
20	1
21	1
22	2
23	1
24	3
25	1
26	2
27	4
28	1
29	1
30	2
31	3
32	1
33	1
34	2
35	4
36	1
37	3
38	1
39	2
40	1
41	1
42	2
43	3
44	4
45	1
46	5
47	1
48	2
49	1
50	3
51	1
52	2
53	4
54	1
55	1
56	2
57	3
58	5
59	1
60	1
61	2
62	4
63	1
64	3
65	1
66	2
67	1
68	5
69	1
70	2
71	3
72	4
73	6
74	1
75	1
76	2
77	1
78	3
79	1
80	2
81	4
82	5
83	1
84	1
85	2
86	3
87	6
88	1
89	1
90	2
91	4
92	1
93	3
94	5
95	1
96	2
97	1
98	1
99	2
100	3