A271641 - cp's OEIS frontend

A271641 Quantity of ancestors for n (in the sense explained below).

n	a(n)
0	9
1	17
2	15
3	13
4	11
5	9
6	7
7	5
8	3
9	1
10	17
11	32
12	29
13	25
14	21
15	17
16	13
17	9
18	5
19	2
20	15
21	28
22	26
23	23
24	19
25	15
26	11
27	7
28	4
29	2
30	13
31	24
32	22
33	20
34	17
35	13
36	9
37	6
38	4
39	2
40	11
41	20
42	18
43	16
44	14
45	11
46	8
47	6
48	4
49	2
50	9
51	16
52	14
53	12
54	10
55	9
56	8
57	6
58	4
59	2
60	7
61	12
62	10
63	8
64	7
65	7
66	7
67	6
68	4
69	2
70	5
71	8
72	6
73	5
74	5
75	5
76	5
77	5
78	4
79	2
80	3
81	4
82	3
83	3
84	3
85	3
86	3
87	3
88	3
89	2
90	1
91	1
92	1
93	1
94	1
95	1
96	1
97	1
98	1
99	1
100	17
101	32

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

cp's OEIS Frontend

A271641 Quantity of ancestors for n (in the sense explained below).

Table of values

List of values

n	a(n)
0	9
1	17
2	15
3	13
4	11
5	9
6	7
7	5
8	3
9	1
10	17
11	32
12	29
13	25
14	21
15	17
16	13
17	9
18	5
19	2
20	15
21	28
22	26
23	23
24	19
25	15
26	11
27	7
28	4
29	2
30	13
31	24
32	22
33	20
34	17
35	13
36	9
37	6
38	4
39	2
40	11
41	20
42	18
43	16
44	14
45	11
46	8
47	6
48	4
49	2
50	9
51	16
52	14
53	12
54	10
55	9
56	8
57	6
58	4
59	2
60	7
61	12
62	10
63	8
64	7
65	7
66	7
67	6
68	4
69	2
70	5
71	8
72	6
73	5
74	5
75	5
76	5
77	5
78	4
79	2
80	3
81	4
82	3
83	3
84	3
85	3
86	3
87	3
88	3
89	2
90	1
91	1
92	1
93	1
94	1
95	1
96	1
97	1
98	1
99	1
100	17
101	32

n	a(n)
0	9
1	17
2	15
3	13
4	11
5	9
6	7
7	5
8	3
9	1
10	17
11	32
12	29
13	25
14	21
15	17
16	13
17	9
18	5
19	2
20	15
21	28
22	26
23	23
24	19
25	15
26	11
27	7
28	4
29	2
30	13
31	24
32	22
33	20
34	17
35	13
36	9
37	6
38	4
39	2
40	11
41	20
42	18
43	16
44	14
45	11
46	8
47	6
48	4
49	2
50	9
51	16
52	14
53	12
54	10
55	9
56	8
57	6
58	4
59	2
60	7
61	12
62	10
63	8
64	7
65	7
66	7
67	6
68	4
69	2
70	5
71	8
72	6
73	5
74	5
75	5
76	5
77	5
78	4
79	2
80	3
81	4
82	3
83	3
84	3
85	3
86	3
87	3
88	3
89	2
90	1
91	1
92	1
93	1
94	1
95	1
96	1
97	1
98	1
99	1
100	17
101	32

n	a(n)
0	9
1	17
2	15
3	13
4	11
5	9
6	7
7	5
8	3
9	1
10	17
11	32
12	29
13	25
14	21
15	17
16	13
17	9
18	5
19	2
20	15
21	28
22	26
23	23
24	19
25	15
26	11
27	7
28	4
29	2
30	13
31	24
32	22
33	20
34	17
35	13
36	9
37	6
38	4
39	2
40	11
41	20
42	18
43	16
44	14
45	11
46	8
47	6
48	4
49	2
50	9
51	16
52	14
53	12
54	10
55	9
56	8
57	6
58	4
59	2
60	7
61	12
62	10
63	8
64	7
65	7
66	7
67	6
68	4
69	2
70	5
71	8
72	6
73	5
74	5
75	5
76	5
77	5
78	4
79	2
80	3
81	4
82	3
83	3
84	3
85	3
86	3
87	3
88	3
89	2
90	1
91	1
92	1
93	1
94	1
95	1
96	1
97	1
98	1
99	1
100	17
101	32