A277891 - cp's OEIS frontend

A277891 a(n) = number of odd numbers encountered before reaching (n^2)-1 when starting from k = ((n+1)^2)-1 and iterating map k -> k - A002828(k).

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

[1, 0, 2, 1, 2, 2, 4, 2, 4, 3, 4, 4, 6, 5, 7, 6, 5, 6, 7, 7, 6, 6, 11, 9, 9, 9, 12, 9, 10, 9, 11, 11, 12, 11, 14, 13, 15, 12, 14, 14, 16, 14, 15, 13, 15, 17, 18, 17, 14, 17, 19, 18, 20, 17, 22, 19, 22, 20, 20, 22, 20, 22, 23, 22, 24, 25, 22, 22, 25, 26, 26, 25, 28, 24, 30, 26, 28, 29, 27, 27, 28, 32, 29, 28, 32, 32, 29, 31, 30, 29, 35, 33, 32, 32, 35, 34, 35, 36]

cp's OEIS Frontend

A277891 a(n) = number of odd numbers encountered before reaching (n^2)-1 when starting from k = ((n+1)^2)-1 and iterating map k -> k - A002828(k).

Table of values

List of values

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

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

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