A257807 - cp's OEIS frontend

A257807 a(n) = number of odd numbers in range 0 .. n of A233271, the infinite trunk of inverted binary beanstalk.

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

[0, 1, 1, 1, 2, 2, 2, 3, 3, 4, 4, 4, 5, 5, 5, 5, 5, 6, 7, 7, 7, 8, 8, 9, 10, 11, 11, 12, 12, 12, 13, 13, 13, 13, 14, 15, 15, 15, 16, 16, 16, 17, 18, 18, 18, 18, 18, 18, 18, 19, 19, 19, 20, 21, 22, 23, 23, 24, 24, 24, 25, 25, 25, 25, 26, 27, 27, 27, 28, 28, 29, 29, 29, 30, 31, 32, 33, 34, 34, 34, 34, 35, 36, 37, 37, 37, 37, 37, 37, 37, 38]

cp's OEIS Frontend

A257807 a(n) = number of odd numbers in range 0 .. n of A233271, the infinite trunk of inverted binary beanstalk.

Table of values

List of values

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

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

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