A217744 - cp's OEIS frontend

A217744 Numbers whose Collatz trajectory contains equal number of terms of the form 4k+1 and 4k+3.

n	a(n)
1	15
2	30
3	60
4	120
5	151
6	239
7	240
8	255
9	302
10	377
11	423
12	425
13	478
14	479
15	480
16	510
17	593
18	604
19	669
20	685
21	743
22	754
23	755
24	846
25	847
26	850
27	851
28	939
29	956
30	958
31	960
32	1020
33	1053
34	1057
35	1186
36	1191
37	1208
38	1297
39	1321
40	1338
41	1341
42	1370
43	1375
44	1473
45	1486
46	1487
47	1508
48	1509
49	1510

[15, 30, 60, 120, 151, 239, 240, 255, 302, 377, 423, 425, 478, 479, 480, 510, 593, 604, 669, 685, 743, 754, 755, 846, 847, 850, 851, 939, 956, 958, 960, 1020, 1053, 1057, 1186, 1191, 1208, 1297, 1321, 1338, 1341, 1370, 1375, 1473, 1486, 1487, 1508, 1509, 1510]

cp's OEIS Frontend

A217744 Numbers whose Collatz trajectory contains equal number of terms of the form 4k+1 and 4k+3.

Table of values

List of values