A070976 - cp's OEIS frontend

A070976 Number of steps to reach 1 in '3x+1' (or Collatz) problem starting with 3^n.

n	a(n)
0	0
1	7
2	19
3	111
4	22
5	96
6	33
7	76
8	75
9	43
10	135
11	134
12	133
13	132
14	144
15	205
16	129
17	190
18	140
19	95
20	94
21	261
22	428
23	91
24	258
25	394
26	331
27	255
28	254
29	390
30	389
31	388
32	462
33	461
34	460
35	459
36	458
37	457
38	456
39	455
40	454
41	453
42	501
43	500
44	450
45	498
46	497
47	752
48	495
49	494
50	493
51	748
52	491
53	746
54	489

[0, 7, 19, 111, 22, 96, 33, 76, 75, 43, 135, 134, 133, 132, 144, 205, 129, 190, 140, 95, 94, 261, 428, 91, 258, 394, 331, 255, 254, 390, 389, 388, 462, 461, 460, 459, 458, 457, 456, 455, 454, 453, 501, 500, 450, 498, 497, 752, 495, 494, 493, 748, 491, 746, 489]

cp's OEIS Frontend

A070976 Number of steps to reach 1 in '3x+1' (or Collatz) problem starting with 3^n.

Table of values

List of values

n	a(n)
0	0
1	7
2	19
3	111
4	22
5	96
6	33
7	76
8	75
9	43
10	135
11	134
12	133
13	132
14	144
15	205
16	129
17	190
18	140
19	95
20	94
21	261
22	428
23	91
24	258
25	394
26	331
27	255
28	254
29	390
30	389
31	388
32	462
33	461
34	460
35	459
36	458
37	457
38	456
39	455
40	454
41	453
42	501
43	500
44	450
45	498
46	497
47	752
48	495
49	494
50	493
51	748
52	491
53	746
54	489

n	a(n)
0	0
1	7
2	19
3	111
4	22
5	96
6	33
7	76
8	75
9	43
10	135
11	134
12	133
13	132
14	144
15	205
16	129
17	190
18	140
19	95
20	94
21	261
22	428
23	91
24	258
25	394
26	331
27	255
28	254
29	390
30	389
31	388
32	462
33	461
34	460
35	459
36	458
37	457
38	456
39	455
40	454
41	453
42	501
43	500
44	450
45	498
46	497
47	752
48	495
49	494
50	493
51	748
52	491
53	746
54	489

n	a(n)
0	0
1	7
2	19
3	111
4	22
5	96
6	33
7	76
8	75
9	43
10	135
11	134
12	133
13	132
14	144
15	205
16	129
17	190
18	140
19	95
20	94
21	261
22	428
23	91
24	258
25	394
26	331
27	255
28	254
29	390
30	389
31	388
32	462
33	461
34	460
35	459
36	458
37	457
38	456
39	455
40	454
41	453
42	501
43	500
44	450
45	498
46	497
47	752
48	495
49	494
50	493
51	748
52	491
53	746
54	489