A330004 - cp's OEIS frontend

A330004 a(1) = 0, and for n > 0, a(n+1) = u - v where u (resp. v) is the number of terms equal to a(n) (resp. a(n)+1) among the first n terms.

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

[0, 1, 1, 2, 1, 2, 2, 3, 1, 1, 2, 3, 2, 3, 3, 4, 1, 1, 2, 2, 3, 4, 2, 3, 4, 3, 4, 4, 5, 1, 0, -6, 1, 1, 2, 2, 3, 3, 4, 5, 2, 2, 3, 4, 5, 3, 4, 5, 4, 5, 5, 6, 1, -1, -1, 0, -8, 1, 0, -8, 2, 2, 3, 3, 4, 4, 5, 6, 2, 2, 3, 3, 4, 5, 6, 3, 4, 5, 6, 4, 5, 6, 5, 6, 6]

cp's OEIS Frontend

A330004 a(1) = 0, and for n > 0, a(n+1) = u - v where u (resp. v) is the number of terms equal to a(n) (resp. a(n)+1) among the first n terms.

Table of values

List of values

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

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

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