A231920 - cp's OEIS frontend

A231920 Working in base 3: a(0)=0, thereafter a(n+1) is the smallest number not already in the sequence such that the bits of a(n) and a(n+1) together can be rearranged to form a palindrome.

n	a(n)
0	0
1	11
2	1
3	10
4	100
5	12
6	2
7	20
8	101
9	22
10	110
11	202
12	220
13	1000
14	102
15	21
16	111
17	122
18	212
19	221
20	1001
21	112
22	121
23	200
24	211
25	222
26	1002
27	120
28	201
29	210
30	1011
31	1022
32	1101
33	1110
34	1202
35	1220
36	2012
37	2021
38	2102
39	2120
40	2201
41	2210
42	10000
43	1010
44	1100
45	1111
46	1122
47	1212
48	1221
49	2002
50	2020

[0, 11, 1, 10, 100, 12, 2, 20, 101, 22, 110, 202, 220, 1000, 102, 21, 111, 122, 212, 221, 1001, 112, 121, 200, 211, 222, 1002, 120, 201, 210, 1011, 1022, 1101, 1110, 1202, 1220, 2012, 2021, 2102, 2120, 2201, 2210, 10000, 1010, 1100, 1111, 1122, 1212, 1221, 2002, 2020]

cp's OEIS Frontend

A231920 Working in base 3: a(0)=0, thereafter a(n+1) is the smallest number not already in the sequence such that the bits of a(n) and a(n+1) together can be rearranged to form a palindrome.

Table of values

List of values