A366347 - cp's OEIS frontend

A366347 a(n) has as many prime factors as the ternary expansion of n has runs of nonzero digits; if the k-th run corresponds to A032924(e) and appears after m-1 0's then the p-adic valuation of a(n) is e (where p corresponds to the m-th prime number).

n	a(n)
0	1
1	2
2	4
3	3
4	8
5	16
6	9
7	32
8	64
9	5
10	6
11	12
12	27
13	128
14	256
15	81
16	512
17	1024
18	25
19	18
20	36
21	243
22	2048
23	4096
24	729
25	8192
26	16384
27	7
28	10
29	20
30	15
31	24
32	48
33	45
34	96
35	192
36	125
37	54
38	108
39	2187
40	32768
41	65536
42	6561
43	131072
44	262144
45	625
46	162
47	324
48	19683
49	524288
50	1048576
51	59049

[1, 2, 4, 3, 8, 16, 9, 32, 64, 5, 6, 12, 27, 128, 256, 81, 512, 1024, 25, 18, 36, 243, 2048, 4096, 729, 8192, 16384, 7, 10, 20, 15, 24, 48, 45, 96, 192, 125, 54, 108, 2187, 32768, 65536, 6561, 131072, 262144, 625, 162, 324, 19683, 524288, 1048576, 59049]

cp's OEIS Frontend

A366347 a(n) has as many prime factors as the ternary expansion of n has runs of nonzero digits; if the k-th run corresponds to A032924(e) and appears after m-1 0's then the p-adic valuation of a(n) is e (where p corresponds to the m-th prime number).

Table of values

List of values