A277890 - cp's OEIS frontend

A277890 Number of even numbers encountered before (n^2)-1 is reached when starting from k = ((n+1)^2)-1 and iterating map k -> k - A002828(k).

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

[0, 2, 0, 3, 2, 3, 1, 5, 3, 4, 4, 6, 3, 5, 3, 7, 8, 8, 6, 8, 9, 10, 6, 8, 10, 10, 7, 11, 10, 13, 11, 12, 12, 14, 10, 13, 12, 13, 14, 15, 13, 15, 15, 18, 18, 16, 15, 17, 21, 18, 18, 18, 19, 20, 16, 21, 20, 20, 22, 20, 23, 20, 22, 23, 21, 23, 23, 27, 25, 24, 22, 28, 22, 27, 24, 26, 25, 25, 29, 29, 28, 26, 30, 31, 28, 28, 31, 30, 32, 33, 27, 32, 34, 34, 30, 33, 33]

cp's OEIS Frontend

A277890 Number of even numbers encountered before (n^2)-1 is reached 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	0
2	2
3	0
4	3
5	2
6	3
7	1
8	5
9	3
10	4
11	4
12	6
13	3
14	5
15	3
16	7
17	8
18	8
19	6
20	8
21	9
22	10
23	6
24	8
25	10
26	10
27	7
28	11
29	10
30	13
31	11
32	12
33	12
34	14
35	10
36	13
37	12
38	13
39	14
40	15
41	13
42	15
43	15
44	18
45	18
46	16
47	15
48	17
49	21
50	18
51	18
52	18
53	19
54	20
55	16
56	21
57	20
58	20
59	22
60	20
61	23
62	20
63	22
64	23
65	21
66	23
67	23
68	27
69	25
70	24
71	22
72	28
73	22
74	27
75	24
76	26
77	25
78	25
79	29
80	29
81	28
82	26
83	30
84	31
85	28
86	28
87	31
88	30
89	32
90	33
91	27
92	32
93	34
94	34
95	30
96	33
97	33

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

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