A213723 - cp's OEIS frontend

A213723 a(n) = smallest natural number x such that x=n+A000120(x), otherwise zero.

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

[0, 2, 0, 4, 6, 0, 0, 8, 10, 0, 12, 14, 0, 0, 0, 16, 18, 0, 20, 22, 0, 0, 24, 26, 0, 28, 30, 0, 0, 0, 0, 32, 34, 0, 36, 38, 0, 0, 40, 42, 0, 44, 46, 0, 0, 0, 48, 50, 0, 52, 54, 0, 0, 56, 58, 0, 60, 62, 0, 0, 0, 0, 0, 64, 66, 0, 68, 70, 0, 0, 72, 74, 0, 76, 78]

cp's OEIS Frontend

A213723 a(n) = smallest natural number x such that x=n+A000120(x), otherwise zero.

Table of values

List of values

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

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

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