A140494 - cp's OEIS frontend

A140494 Numbers that cannot be part of the trajectory of any number under repeated application of the map: n -> n + third-smallest number that does not divide n, unless they are the first term of the trajectory.

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	12
7	18
8	24
9	28
10	30
11	36
12	37
13	40
14	42
15	46
16	48
17	49
18	52
19	54
20	55
21	60
22	64
23	66
24	72
25	78
26	80
27	84
28	88
29	90
30	96
31	97
32	100
33	102
34	106
35	108
36	112
37	114
38	115
39	120
40	124
41	126
42	132
43	133
44	138
45	144
46	150
47	156
48	157
49	160
50	162
51	166
52	168
53	172
54	174
55	175
56	180
57	184
58	186
59	192
60	198
61	200

[1, 2, 3, 4, 6, 12, 18, 24, 28, 30, 36, 37, 40, 42, 46, 48, 49, 52, 54, 55, 60, 64, 66, 72, 78, 80, 84, 88, 90, 96, 97, 100, 102, 106, 108, 112, 114, 115, 120, 124, 126, 132, 133, 138, 144, 150, 156, 157, 160, 162, 166, 168, 172, 174, 175, 180, 184, 186, 192, 198, 200]

cp's OEIS Frontend

A140494 Numbers that cannot be part of the trajectory of any number under repeated application of the map: n -> n + third-smallest number that does not divide n, unless they are the first term of the trajectory.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	12
7	18
8	24
9	28
10	30
11	36
12	37
13	40
14	42
15	46
16	48
17	49
18	52
19	54
20	55
21	60
22	64
23	66
24	72
25	78
26	80
27	84
28	88
29	90
30	96
31	97
32	100
33	102
34	106
35	108
36	112
37	114
38	115
39	120
40	124
41	126
42	132
43	133
44	138
45	144
46	150
47	156
48	157
49	160
50	162
51	166
52	168
53	172
54	174
55	175
56	180
57	184
58	186
59	192
60	198
61	200

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	12
7	18
8	24
9	28
10	30
11	36
12	37
13	40
14	42
15	46
16	48
17	49
18	52
19	54
20	55
21	60
22	64
23	66
24	72
25	78
26	80
27	84
28	88
29	90
30	96
31	97
32	100
33	102
34	106
35	108
36	112
37	114
38	115
39	120
40	124
41	126
42	132
43	133
44	138
45	144
46	150
47	156
48	157
49	160
50	162
51	166
52	168
53	172
54	174
55	175
56	180
57	184
58	186
59	192
60	198
61	200

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	12
7	18
8	24
9	28
10	30
11	36
12	37
13	40
14	42
15	46
16	48
17	49
18	52
19	54
20	55
21	60
22	64
23	66
24	72
25	78
26	80
27	84
28	88
29	90
30	96
31	97
32	100
33	102
34	106
35	108
36	112
37	114
38	115
39	120
40	124
41	126
42	132
43	133
44	138
45	144
46	150
47	156
48	157
49	160
50	162
51	166
52	168
53	172
54	174
55	175
56	180
57	184
58	186
59	192
60	198
61	200