A074212 - cp's OEIS frontend

A074212 Number of steps to reach an integer starting with (2^n + 1)/2^n and iterating the map x->x*ceiling(x).

n	a(n)
1	1
2	3
3	4
4	8
5	6
6	6
7	14
8	14
9	15
10	9
11	12
12	20
13	21
14	21
15	22
16	30
17	28
18	33
19	22
20	11
21	16
22	34
23	31
24	23
25	32
26	30
27	25
28	43
29	32
30	29
31	35
32	40
33	31
34	58
35	49
36	47
37	39
38	43
39	45
40	46
41	39
42	44
43	32
44	44
45	22
46	56
47	51
48	61
49	48
50	46
51	55
52	68
53	69
54	60
55	69
56	70
57	78
58	89
59	72
60	93
61	61
62	64
63	80
64	71
65	60
66	58
67	71

[1, 3, 4, 8, 6, 6, 14, 14, 15, 9, 12, 20, 21, 21, 22, 30, 28, 33, 22, 11, 16, 34, 31, 23, 32, 30, 25, 43, 32, 29, 35, 40, 31, 58, 49, 47, 39, 43, 45, 46, 39, 44, 32, 44, 22, 56, 51, 61, 48, 46, 55, 68, 69, 60, 69, 70, 78, 89, 72, 93, 61, 64, 80, 71, 60, 58, 71]

cp's OEIS Frontend

A074212 Number of steps to reach an integer starting with (2^n + 1)/2^n and iterating the map x->x*ceiling(x).

Table of values

List of values

n	a(n)
1	1
2	3
3	4
4	8
5	6
6	6
7	14
8	14
9	15
10	9
11	12
12	20
13	21
14	21
15	22
16	30
17	28
18	33
19	22
20	11
21	16
22	34
23	31
24	23
25	32
26	30
27	25
28	43
29	32
30	29
31	35
32	40
33	31
34	58
35	49
36	47
37	39
38	43
39	45
40	46
41	39
42	44
43	32
44	44
45	22
46	56
47	51
48	61
49	48
50	46
51	55
52	68
53	69
54	60
55	69
56	70
57	78
58	89
59	72
60	93
61	61
62	64
63	80
64	71
65	60
66	58
67	71

n	a(n)
1	1
2	3
3	4
4	8
5	6
6	6
7	14
8	14
9	15
10	9
11	12
12	20
13	21
14	21
15	22
16	30
17	28
18	33
19	22
20	11
21	16
22	34
23	31
24	23
25	32
26	30
27	25
28	43
29	32
30	29
31	35
32	40
33	31
34	58
35	49
36	47
37	39
38	43
39	45
40	46
41	39
42	44
43	32
44	44
45	22
46	56
47	51
48	61
49	48
50	46
51	55
52	68
53	69
54	60
55	69
56	70
57	78
58	89
59	72
60	93
61	61
62	64
63	80
64	71
65	60
66	58
67	71

n	a(n)
1	1
2	3
3	4
4	8
5	6
6	6
7	14
8	14
9	15
10	9
11	12
12	20
13	21
14	21
15	22
16	30
17	28
18	33
19	22
20	11
21	16
22	34
23	31
24	23
25	32
26	30
27	25
28	43
29	32
30	29
31	35
32	40
33	31
34	58
35	49
36	47
37	39
38	43
39	45
40	46
41	39
42	44
43	32
44	44
45	22
46	56
47	51
48	61
49	48
50	46
51	55
52	68
53	69
54	60
55	69
56	70
57	78
58	89
59	72
60	93
61	61
62	64
63	80
64	71
65	60
66	58
67	71