A030275 - cp's OEIS frontend

A030275 Denominators of sequence {b(1), b(2),...} which when COMPOSED with itself gives {1,2,3,...}.

n	a(n)
1	1
2	1
3	2
4	4
5	8
6	1
7	16
8	64
9	128
10	128
11	256
12	512
13	1024
14	2048
15	2048
16	16384
17	32768
18	32768
19	65536
20	131072
21	262144
22	131072
23	524288
24	2097152
25	4194304
26	4194304
27	8388608
28	2097152
29	16777216
30	134217728
31	67108864
32	1073741824
33	2147483648
34	2147483648
35	4294967296
36	8589934592

[1, 1, 2, 4, 8, 1, 16, 64, 128, 128, 256, 512, 1024, 2048, 2048, 16384, 32768, 32768, 65536, 131072, 262144, 131072, 524288, 2097152, 4194304, 4194304, 8388608, 2097152, 16777216, 134217728, 67108864, 1073741824, 2147483648, 2147483648, 4294967296, 8589934592]

cp's OEIS Frontend

A030275 Denominators of sequence {b(1), b(2),...} which when COMPOSED with itself gives {1,2,3,...}.

Table of values

List of values