A309262 - cp's OEIS frontend

A309262 a(0) = 0, a(1) = 1, and for any n > 1, a(n) = Sum_{k > 1} a(floor(n/k^2)).

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

[0, 1, 0, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 3, 3, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 7, 7, 7, 7, 7, 7]

cp's OEIS Frontend

A309262 a(0) = 0, a(1) = 1, and for any n > 1, a(n) = Sum_{k > 1} a(floor(n/k^2)).

Table of values

List of values

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

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

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