A130212 - cp's OEIS frontend

A130212 T(k, n) = sum_(1 <= j <= k) [j | k] j mu(k / j) floor(n / k), triangle read by rows.

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

[1, 2, 1, 3, 1, 2, 4, 2, 2, 2, 5, 2, 2, 2, 4, 6, 3, 4, 2, 4, 2, 7, 3, 4, 2, 4, 2, 6, 8, 4, 4, 4, 4, 2, 6, 4, 9, 4, 6, 4, 4, 2, 6, 4, 6, 10, 5, 6, 4, 8, 2, 6, 4, 6, 4, 11, 5, 6, 4, 8, 2, 6, 4, 6, 4, 10, 12, 6, 8, 6, 8, 4, 6, 4, 6, 4, 10, 4, 13, 6, 8, 6, 8, 4, 6, 4, 6, 4, 10, 4, 12]

cp's OEIS Frontend

A130212 T(k, n) = sum_(1 <= j <= k) [j | k] j mu(k / j) floor(n / k), triangle read by rows.

Table of values

List of values

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

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

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