A233249 - cp's OEIS frontend

A233249 a(1)=0; for k >= 1, let prime(k) map to 10...0 with k-1 zeros and let prime(k)*prime(m) map to the concatenation in binary of 2^(k-1) and 2^(m-1). For n >= 2, let the prime power factorization of n be mapped to r(n). a(n) is the term in A114994 which is c-equivalent to r(n) (see there our comment).

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	8
8	7
9	10
10	9
11	16
12	11
13	32
14	17
15	18
16	15
17	64
18	21
19	128
20	19
21	34
22	33
23	256
24	23
25	36
26	65
27	42
28	35
29	512
30	37
31	1024
32	31
33	66
34	129
35	68
36	43
37	2048
38	257
39	130
40	39
41	4096
42	69
43	8192
44	67
45	74
46	513
47	16384
48	47
49	136
50	73
51	258
52	131
53	32768
54	85
55	132
56	71
57	514
58	1025
59	65536
60	75

[0, 1, 2, 3, 4, 5, 8, 7, 10, 9, 16, 11, 32, 17, 18, 15, 64, 21, 128, 19, 34, 33, 256, 23, 36, 65, 42, 35, 512, 37, 1024, 31, 66, 129, 68, 43, 2048, 257, 130, 39, 4096, 69, 8192, 67, 74, 513, 16384, 47, 136, 73, 258, 131, 32768, 85, 132, 71, 514, 1025, 65536, 75]

cp's OEIS Frontend

Table of values

List of values