A322017 - cp's OEIS frontend

A322017 a(0) = 0; for n > 0, if A003188(n) > A003188(n-1) then a(n) = n-1, else if A003188(n+1) < A003188(n) then a(n) = n+1, otherwise a(n) = 0.

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

[0, 0, 1, 0, 3, 4, 7, 0, 7, 8, 9, 12, 0, 12, 15, 0, 15, 16, 17, 0, 19, 20, 23, 24, 0, 24, 25, 28, 0, 28, 31, 0, 31, 32, 33, 0, 35, 36, 39, 0, 39, 40, 41, 44, 0, 44, 47, 48, 0, 48, 49, 0, 51, 52, 55, 56, 0, 56, 57, 60, 0, 60, 63, 0, 63, 64, 65, 0, 67, 68, 71, 0, 71, 72, 73, 76, 0, 76, 79, 0, 79, 80, 81, 0, 83, 84, 87, 88, 0, 88, 89]

cp's OEIS Frontend

A322017 a(0) = 0; for n > 0, if A003188(n) > A003188(n-1) then a(n) = n-1, else if A003188(n+1) < A003188(n) then a(n) = n+1, otherwise a(n) = 0.

Table of values

List of values

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

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

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