A322987 - cp's OEIS frontend

A322987 Number of iterations of A049820(x) = x - A000005(x) needed to reach a square, when starting from x = n.

n	a(n)
0	0
1	0
2	1
3	1
4	0
5	2
6	2
7	3
8	1
9	0
10	3
11	1
12	3
13	2
14	4
15	2
16	0
17	3
18	4
19	4
20	5
21	4
22	5
23	5
24	1
25	0
26	6
27	6
28	6
29	7
30	6
31	8
32	7
33	8
34	7
35	9
36	0
37	10
38	8
39	10
40	8
41	11
42	8
43	12
44	9
45	11
46	9
47	12
48	9
49	0
50	10
51	13
52	10
53	14
54	10
55	14
56	10
57	15
58	11
59	16
60	10
61	17
62	12
63	16
64	0
65	18
66	12
67	19
68	13
69	19
70	13
71	20
72	11
73	21
74	14
75	20
76	14
77	22
78	14
79	23
80	14
81	0
82	15
83	1
84	12
85	1
86	16
87	2
88	15
89	3
90	15
91	3
92	17
93	4
94	16
95	4
96	13
97	5
98	18
99	5
100	0

[0, 0, 1, 1, 0, 2, 2, 3, 1, 0, 3, 1, 3, 2, 4, 2, 0, 3, 4, 4, 5, 4, 5, 5, 1, 0, 6, 6, 6, 7, 6, 8, 7, 8, 7, 9, 0, 10, 8, 10, 8, 11, 8, 12, 9, 11, 9, 12, 9, 0, 10, 13, 10, 14, 10, 14, 10, 15, 11, 16, 10, 17, 12, 16, 0, 18, 12, 19, 13, 19, 13, 20, 11, 21, 14, 20, 14, 22, 14, 23, 14, 0, 15, 1, 12, 1, 16, 2, 15, 3, 15, 3, 17, 4, 16, 4, 13, 5, 18, 5, 0]

cp's OEIS Frontend

A322987 Number of iterations of A049820(x) = x - A000005(x) needed to reach a square, when starting from x = n.

Table of values

List of values

n	a(n)
0	0
1	0
2	1
3	1
4	0
5	2
6	2
7	3
8	1
9	0
10	3
11	1
12	3
13	2
14	4
15	2
16	0
17	3
18	4
19	4
20	5
21	4
22	5
23	5
24	1
25	0
26	6
27	6
28	6
29	7
30	6
31	8
32	7
33	8
34	7
35	9
36	0
37	10
38	8
39	10
40	8
41	11
42	8
43	12
44	9
45	11
46	9
47	12
48	9
49	0
50	10
51	13
52	10
53	14
54	10
55	14
56	10
57	15
58	11
59	16
60	10
61	17
62	12
63	16
64	0
65	18
66	12
67	19
68	13
69	19
70	13
71	20
72	11
73	21
74	14
75	20
76	14
77	22
78	14
79	23
80	14
81	0
82	15
83	1
84	12
85	1
86	16
87	2
88	15
89	3
90	15
91	3
92	17
93	4
94	16
95	4
96	13
97	5
98	18
99	5
100	0

n	a(n)
0	0
1	0
2	1
3	1
4	0
5	2
6	2
7	3
8	1
9	0
10	3
11	1
12	3
13	2
14	4
15	2
16	0
17	3
18	4
19	4
20	5
21	4
22	5
23	5
24	1
25	0
26	6
27	6
28	6
29	7
30	6
31	8
32	7
33	8
34	7
35	9
36	0
37	10
38	8
39	10
40	8
41	11
42	8
43	12
44	9
45	11
46	9
47	12
48	9
49	0
50	10
51	13
52	10
53	14
54	10
55	14
56	10
57	15
58	11
59	16
60	10
61	17
62	12
63	16
64	0
65	18
66	12
67	19
68	13
69	19
70	13
71	20
72	11
73	21
74	14
75	20
76	14
77	22
78	14
79	23
80	14
81	0
82	15
83	1
84	12
85	1
86	16
87	2
88	15
89	3
90	15
91	3
92	17
93	4
94	16
95	4
96	13
97	5
98	18
99	5
100	0

n	a(n)
0	0
1	0
2	1
3	1
4	0
5	2
6	2
7	3
8	1
9	0
10	3
11	1
12	3
13	2
14	4
15	2
16	0
17	3
18	4
19	4
20	5
21	4
22	5
23	5
24	1
25	0
26	6
27	6
28	6
29	7
30	6
31	8
32	7
33	8
34	7
35	9
36	0
37	10
38	8
39	10
40	8
41	11
42	8
43	12
44	9
45	11
46	9
47	12
48	9
49	0
50	10
51	13
52	10
53	14
54	10
55	14
56	10
57	15
58	11
59	16
60	10
61	17
62	12
63	16
64	0
65	18
66	12
67	19
68	13
69	19
70	13
71	20
72	11
73	21
74	14
75	20
76	14
77	22
78	14
79	23
80	14
81	0
82	15
83	1
84	12
85	1
86	16
87	2
88	15
89	3
90	15
91	3
92	17
93	4
94	16
95	4
96	13
97	5
98	18
99	5
100	0