A033657 - cp's OEIS frontend

A033657 Trajectory of 23 under map x->x + (x-with-digits-reversed).

n	a(n)
0	23
1	55
2	110
3	121
4	242
5	484
6	968
7	1837
8	9218
9	17347
10	91718
11	173437
12	907808
13	1716517
14	8872688
15	17735476
16	85189247
17	159487405
18	664272356
19	1317544822
20	3602001953
21	7193004016
22	13297007933
23	47267087164

[23, 55, 110, 121, 242, 484, 968, 1837, 9218, 17347, 91718, 173437, 907808, 1716517, 8872688, 17735476, 85189247, 159487405, 664272356, 1317544822, 3602001953, 7193004016, 13297007933, 47267087164]

cp's OEIS Frontend

A033657 Trajectory of 23 under map x->x + (x-with-digits-reversed).

Table of values

List of values