A269162 - cp's OEIS frontend

A269162 a(0) = 0, for n > 0, a(n) = the least (necessarily also unique) k such that A269160(k) = n, or 0 if no such k exists.

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	0
6	0
7	1
8	0
9	0
10	0
11	0
12	0
13	3
14	2
15	0
16	0
17	0
18	0
19	0
20	0
21	0
22	0
23	0
24	0
25	7
26	6
27	5
28	4
29	0
30	0
31	0
32	0
33	0
34	0
35	0
36	0
37	0
38	0
39	0
40	0
41	0
42	0
43	0
44	0
45	0
46	0
47	0
48	0
49	15
50	14
51	13
52	12
53	11
54	10
55	0
56	8
57	0
58	0
59	0
60	0
61	0
62	0
63	9
64	0
65	0
66	0
67	0
68	0
69	0
70	0
71	0
72	0
73	0
74	0
75	0
76	0
77	0
78	0
79	0
80	0
81	0
82	0
83	0
84	0
85	0
86	0
87	0
88	0
89	0
90	0
91	0
92	0
93	0
94	0
95	0
96	0
97	31
98	30
99	29
100	28
101	27
102	26
103	0
104	24
105	23
106	22
107	21
108	20
109	0
110	0
111	25

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

cp's OEIS Frontend

A269162 a(0) = 0, for n > 0, a(n) = the least (necessarily also unique) k such that A269160(k) = n, or 0 if no such k exists.

Table of values

List of values

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	0
6	0
7	1
8	0
9	0
10	0
11	0
12	0
13	3
14	2
15	0
16	0
17	0
18	0
19	0
20	0
21	0
22	0
23	0
24	0
25	7
26	6
27	5
28	4
29	0
30	0
31	0
32	0
33	0
34	0
35	0
36	0
37	0
38	0
39	0
40	0
41	0
42	0
43	0
44	0
45	0
46	0
47	0
48	0
49	15
50	14
51	13
52	12
53	11
54	10
55	0
56	8
57	0
58	0
59	0
60	0
61	0
62	0
63	9
64	0
65	0
66	0
67	0
68	0
69	0
70	0
71	0
72	0
73	0
74	0
75	0
76	0
77	0
78	0
79	0
80	0
81	0
82	0
83	0
84	0
85	0
86	0
87	0
88	0
89	0
90	0
91	0
92	0
93	0
94	0
95	0
96	0
97	31
98	30
99	29
100	28
101	27
102	26
103	0
104	24
105	23
106	22
107	21
108	20
109	0
110	0
111	25

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	0
6	0
7	1
8	0
9	0
10	0
11	0
12	0
13	3
14	2
15	0
16	0
17	0
18	0
19	0
20	0
21	0
22	0
23	0
24	0
25	7
26	6
27	5
28	4
29	0
30	0
31	0
32	0
33	0
34	0
35	0
36	0
37	0
38	0
39	0
40	0
41	0
42	0
43	0
44	0
45	0
46	0
47	0
48	0
49	15
50	14
51	13
52	12
53	11
54	10
55	0
56	8
57	0
58	0
59	0
60	0
61	0
62	0
63	9
64	0
65	0
66	0
67	0
68	0
69	0
70	0
71	0
72	0
73	0
74	0
75	0
76	0
77	0
78	0
79	0
80	0
81	0
82	0
83	0
84	0
85	0
86	0
87	0
88	0
89	0
90	0
91	0
92	0
93	0
94	0
95	0
96	0
97	31
98	30
99	29
100	28
101	27
102	26
103	0
104	24
105	23
106	22
107	21
108	20
109	0
110	0
111	25

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	0
6	0
7	1
8	0
9	0
10	0
11	0
12	0
13	3
14	2
15	0
16	0
17	0
18	0
19	0
20	0
21	0
22	0
23	0
24	0
25	7
26	6
27	5
28	4
29	0
30	0
31	0
32	0
33	0
34	0
35	0
36	0
37	0
38	0
39	0
40	0
41	0
42	0
43	0
44	0
45	0
46	0
47	0
48	0
49	15
50	14
51	13
52	12
53	11
54	10
55	0
56	8
57	0
58	0
59	0
60	0
61	0
62	0
63	9
64	0
65	0
66	0
67	0
68	0
69	0
70	0
71	0
72	0
73	0
74	0
75	0
76	0
77	0
78	0
79	0
80	0
81	0
82	0
83	0
84	0
85	0
86	0
87	0
88	0
89	0
90	0
91	0
92	0
93	0
94	0
95	0
96	0
97	31
98	30
99	29
100	28
101	27
102	26
103	0
104	24
105	23
106	22
107	21
108	20
109	0
110	0
111	25