A368531 - cp's OEIS frontend

A368531 Numbers whose binary indices are all powers of 3, where a binary index of n (row n of A048793) is any position of a 1 in its reversed binary expansion.

n	a(n)
1	0
2	1
3	4
4	5
5	256
6	257
7	260
8	261
9	67108864
10	67108865
11	67108868
12	67108869
13	67109120
14	67109121
15	67109124
16	67109125
17	1208925819614629174706176
18	1208925819614629174706177
19	1208925819614629174706180
20	1208925819614629174706181
21	1208925819614629174706432

[0, 1, 4, 5, 256, 257, 260, 261, 67108864, 67108865, 67108868, 67108869, 67109120, 67109121, 67109124, 67109125, 1208925819614629174706176, 1208925819614629174706177, 1208925819614629174706180, 1208925819614629174706181, 1208925819614629174706432]

cp's OEIS Frontend

A368531 Numbers whose binary indices are all powers of 3, where a binary index of n (row n of A048793) is any position of a 1 in its reversed binary expansion.

Table of values

List of values