A256598 - cp's OEIS frontend

A256598 Irregular triangle where row n contains the odd terms in the Collatz sequence beginning with 2n+1.

n	a(n)
0	1
1	3
2	5
3	1
4	5
5	1
6	7
7	11
8	17
9	13
10	5
11	1
12	9
13	7
14	11
15	17
16	13
17	5
18	1
19	11
20	17
21	13
22	5
23	1
24	13
25	5
26	1
27	15
28	23
29	35
30	53
31	5
32	1
33	17
34	13
35	5
36	1
37	19
38	29
39	11
40	17
41	13
42	5
43	1
44	21
45	1
46	23
47	35
48	53
49	5
50	1
51	25
52	19
53	29
54	11
55	17
56	13
57	5
58	1
59	27
60	41
61	31
62	47
63	71
64	107
65	161
66	121
67	91
68	137
69	103
70	155

[1, 3, 5, 1, 5, 1, 7, 11, 17, 13, 5, 1, 9, 7, 11, 17, 13, 5, 1, 11, 17, 13, 5, 1, 13, 5, 1, 15, 23, 35, 53, 5, 1, 17, 13, 5, 1, 19, 29, 11, 17, 13, 5, 1, 21, 1, 23, 35, 53, 5, 1, 25, 19, 29, 11, 17, 13, 5, 1, 27, 41, 31, 47, 71, 107, 161, 121, 91, 137, 103, 155]

cp's OEIS Frontend

A256598 Irregular triangle where row n contains the odd terms in the Collatz sequence beginning with 2n+1.

Table of values

List of values

n	a(n)
0	1
1	3
2	5
3	1
4	5
5	1
6	7
7	11
8	17
9	13
10	5
11	1
12	9
13	7
14	11
15	17
16	13
17	5
18	1
19	11
20	17
21	13
22	5
23	1
24	13
25	5
26	1
27	15
28	23
29	35
30	53
31	5
32	1
33	17
34	13
35	5
36	1
37	19
38	29
39	11
40	17
41	13
42	5
43	1
44	21
45	1
46	23
47	35
48	53
49	5
50	1
51	25
52	19
53	29
54	11
55	17
56	13
57	5
58	1
59	27
60	41
61	31
62	47
63	71
64	107
65	161
66	121
67	91
68	137
69	103
70	155

n	a(n)
0	1
1	3
2	5
3	1
4	5
5	1
6	7
7	11
8	17
9	13
10	5
11	1
12	9
13	7
14	11
15	17
16	13
17	5
18	1
19	11
20	17
21	13
22	5
23	1
24	13
25	5
26	1
27	15
28	23
29	35
30	53
31	5
32	1
33	17
34	13
35	5
36	1
37	19
38	29
39	11
40	17
41	13
42	5
43	1
44	21
45	1
46	23
47	35
48	53
49	5
50	1
51	25
52	19
53	29
54	11
55	17
56	13
57	5
58	1
59	27
60	41
61	31
62	47
63	71
64	107
65	161
66	121
67	91
68	137
69	103
70	155

n	a(n)
0	1
1	3
2	5
3	1
4	5
5	1
6	7
7	11
8	17
9	13
10	5
11	1
12	9
13	7
14	11
15	17
16	13
17	5
18	1
19	11
20	17
21	13
22	5
23	1
24	13
25	5
26	1
27	15
28	23
29	35
30	53
31	5
32	1
33	17
34	13
35	5
36	1
37	19
38	29
39	11
40	17
41	13
42	5
43	1
44	21
45	1
46	23
47	35
48	53
49	5
50	1
51	25
52	19
53	29
54	11
55	17
56	13
57	5
58	1
59	27
60	41
61	31
62	47
63	71
64	107
65	161
66	121
67	91
68	137
69	103
70	155