A340224 - cp's OEIS frontend

A340224 a(n+1) = a(n-a(n)*(a(n)-1)/2) + 1, starting with a(1) = 0.

n	a(n)
1	0
2	1
3	2
4	2
5	3
6	2
7	4
8	1
9	2
10	2
11	3
12	2
13	4
14	5
15	3
16	3
17	5
18	5
19	2
20	6
21	4
22	4
23	4
24	6
25	3
26	5
27	4
28	5
29	6
30	6
31	4
32	4
33	6
34	6
35	3
36	5
37	6
38	5
39	6
40	7
41	3
42	6
43	5
44	7
45	5
46	4
47	8
48	3
49	6
50	7
51	7
52	7
53	5
54	6
55	7
56	7
57	4
58	8
59	7
60	6
61	6
62	5
63	8
64	4
65	9
66	7
67	6
68	8
69	8
70	4
71	5
72	7
73	8
74	6
75	8
76	9
77	8
78	7
79	5
80	9
81	8
82	6
83	7
84	6
85	9
86	7
87	10
88	7
89	7
90	9
91	7
92	5
93	7
94	8
95	8

[0, 1, 2, 2, 3, 2, 4, 1, 2, 2, 3, 2, 4, 5, 3, 3, 5, 5, 2, 6, 4, 4, 4, 6, 3, 5, 4, 5, 6, 6, 4, 4, 6, 6, 3, 5, 6, 5, 6, 7, 3, 6, 5, 7, 5, 4, 8, 3, 6, 7, 7, 7, 5, 6, 7, 7, 4, 8, 7, 6, 6, 5, 8, 4, 9, 7, 6, 8, 8, 4, 5, 7, 8, 6, 8, 9, 8, 7, 5, 9, 8, 6, 7, 6, 9, 7, 10, 7, 7, 9, 7, 5, 7, 8, 8]

cp's OEIS Frontend

A340224 a(n+1) = a(n-a(n)*(a(n)-1)/2) + 1, starting with a(1) = 0.

Table of values

List of values

n	a(n)
1	0
2	1
3	2
4	2
5	3
6	2
7	4
8	1
9	2
10	2
11	3
12	2
13	4
14	5
15	3
16	3
17	5
18	5
19	2
20	6
21	4
22	4
23	4
24	6
25	3
26	5
27	4
28	5
29	6
30	6
31	4
32	4
33	6
34	6
35	3
36	5
37	6
38	5
39	6
40	7
41	3
42	6
43	5
44	7
45	5
46	4
47	8
48	3
49	6
50	7
51	7
52	7
53	5
54	6
55	7
56	7
57	4
58	8
59	7
60	6
61	6
62	5
63	8
64	4
65	9
66	7
67	6
68	8
69	8
70	4
71	5
72	7
73	8
74	6
75	8
76	9
77	8
78	7
79	5
80	9
81	8
82	6
83	7
84	6
85	9
86	7
87	10
88	7
89	7
90	9
91	7
92	5
93	7
94	8
95	8

n	a(n)
1	0
2	1
3	2
4	2
5	3
6	2
7	4
8	1
9	2
10	2
11	3
12	2
13	4
14	5
15	3
16	3
17	5
18	5
19	2
20	6
21	4
22	4
23	4
24	6
25	3
26	5
27	4
28	5
29	6
30	6
31	4
32	4
33	6
34	6
35	3
36	5
37	6
38	5
39	6
40	7
41	3
42	6
43	5
44	7
45	5
46	4
47	8
48	3
49	6
50	7
51	7
52	7
53	5
54	6
55	7
56	7
57	4
58	8
59	7
60	6
61	6
62	5
63	8
64	4
65	9
66	7
67	6
68	8
69	8
70	4
71	5
72	7
73	8
74	6
75	8
76	9
77	8
78	7
79	5
80	9
81	8
82	6
83	7
84	6
85	9
86	7
87	10
88	7
89	7
90	9
91	7
92	5
93	7
94	8
95	8

n	a(n)
1	0
2	1
3	2
4	2
5	3
6	2
7	4
8	1
9	2
10	2
11	3
12	2
13	4
14	5
15	3
16	3
17	5
18	5
19	2
20	6
21	4
22	4
23	4
24	6
25	3
26	5
27	4
28	5
29	6
30	6
31	4
32	4
33	6
34	6
35	3
36	5
37	6
38	5
39	6
40	7
41	3
42	6
43	5
44	7
45	5
46	4
47	8
48	3
49	6
50	7
51	7
52	7
53	5
54	6
55	7
56	7
57	4
58	8
59	7
60	6
61	6
62	5
63	8
64	4
65	9
66	7
67	6
68	8
69	8
70	4
71	5
72	7
73	8
74	6
75	8
76	9
77	8
78	7
79	5
80	9
81	8
82	6
83	7
84	6
85	9
86	7
87	10
88	7
89	7
90	9
91	7
92	5
93	7
94	8
95	8