A059905 - cp's OEIS frontend

A059905 Index of first half of decomposition of integers into pairs based on A000695.

n	a(n)
0	0
1	1
2	0
3	1
4	2
5	3
6	2
7	3
8	0
9	1
10	0
11	1
12	2
13	3
14	2
15	3
16	4
17	5
18	4
19	5
20	6
21	7
22	6
23	7
24	4
25	5
26	4
27	5
28	6
29	7
30	6
31	7
32	0
33	1
34	0
35	1
36	2
37	3
38	2
39	3
40	0
41	1
42	0
43	1
44	2
45	3
46	2
47	3
48	4
49	5
50	4
51	5
52	6
53	7
54	6
55	7
56	4
57	5
58	4
59	5
60	6
61	7
62	6
63	7
64	8
65	9
66	8
67	9
68	10
69	11
70	10
71	11
72	8
73	9
74	8
75	9
76	10
77	11
78	10
79	11
80	12
81	13
82	12
83	13
84	14
85	15
86	14
87	15
88	12
89	13
90	12
91	13
92	14

[0, 1, 0, 1, 2, 3, 2, 3, 0, 1, 0, 1, 2, 3, 2, 3, 4, 5, 4, 5, 6, 7, 6, 7, 4, 5, 4, 5, 6, 7, 6, 7, 0, 1, 0, 1, 2, 3, 2, 3, 0, 1, 0, 1, 2, 3, 2, 3, 4, 5, 4, 5, 6, 7, 6, 7, 4, 5, 4, 5, 6, 7, 6, 7, 8, 9, 8, 9, 10, 11, 10, 11, 8, 9, 8, 9, 10, 11, 10, 11, 12, 13, 12, 13, 14, 15, 14, 15, 12, 13, 12, 13, 14]

cp's OEIS Frontend

A059905 Index of first half of decomposition of integers into pairs based on A000695.

Table of values

List of values

n	a(n)
0	0
1	1
2	0
3	1
4	2
5	3
6	2
7	3
8	0
9	1
10	0
11	1
12	2
13	3
14	2
15	3
16	4
17	5
18	4
19	5
20	6
21	7
22	6
23	7
24	4
25	5
26	4
27	5
28	6
29	7
30	6
31	7
32	0
33	1
34	0
35	1
36	2
37	3
38	2
39	3
40	0
41	1
42	0
43	1
44	2
45	3
46	2
47	3
48	4
49	5
50	4
51	5
52	6
53	7
54	6
55	7
56	4
57	5
58	4
59	5
60	6
61	7
62	6
63	7
64	8
65	9
66	8
67	9
68	10
69	11
70	10
71	11
72	8
73	9
74	8
75	9
76	10
77	11
78	10
79	11
80	12
81	13
82	12
83	13
84	14
85	15
86	14
87	15
88	12
89	13
90	12
91	13
92	14

n	a(n)
0	0
1	1
2	0
3	1
4	2
5	3
6	2
7	3
8	0
9	1
10	0
11	1
12	2
13	3
14	2
15	3
16	4
17	5
18	4
19	5
20	6
21	7
22	6
23	7
24	4
25	5
26	4
27	5
28	6
29	7
30	6
31	7
32	0
33	1
34	0
35	1
36	2
37	3
38	2
39	3
40	0
41	1
42	0
43	1
44	2
45	3
46	2
47	3
48	4
49	5
50	4
51	5
52	6
53	7
54	6
55	7
56	4
57	5
58	4
59	5
60	6
61	7
62	6
63	7
64	8
65	9
66	8
67	9
68	10
69	11
70	10
71	11
72	8
73	9
74	8
75	9
76	10
77	11
78	10
79	11
80	12
81	13
82	12
83	13
84	14
85	15
86	14
87	15
88	12
89	13
90	12
91	13
92	14

n	a(n)
0	0
1	1
2	0
3	1
4	2
5	3
6	2
7	3
8	0
9	1
10	0
11	1
12	2
13	3
14	2
15	3
16	4
17	5
18	4
19	5
20	6
21	7
22	6
23	7
24	4
25	5
26	4
27	5
28	6
29	7
30	6
31	7
32	0
33	1
34	0
35	1
36	2
37	3
38	2
39	3
40	0
41	1
42	0
43	1
44	2
45	3
46	2
47	3
48	4
49	5
50	4
51	5
52	6
53	7
54	6
55	7
56	4
57	5
58	4
59	5
60	6
61	7
62	6
63	7
64	8
65	9
66	8
67	9
68	10
69	11
70	10
71	11
72	8
73	9
74	8
75	9
76	10
77	11
78	10
79	11
80	12
81	13
82	12
83	13
84	14
85	15
86	14
87	15
88	12
89	13
90	12
91	13
92	14