cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A072005 Smallest solution to gcd(k, reverse(k)) = 3^n.

Table of values

n a(n)
0 1
1 3
2 9
3 2889
4 2899999989
5 4899999987
6 19899999972
7 29898999693
8 49989958299
9 49999917897
10 99884394999
11 372797889885
12 1989767716659
13 2678052898989
14 17902896898419
15 137530987695297
16 189281899170567
17 368055404997498
18 14048104419899757
19 437893473401621955
20 218264275944702783

List of values

[1, 3, 9, 2889, 2899999989, 4899999987, 19899999972, 29898999693, 49989958299, 49999917897, 99884394999, 372797889885, 1989767716659, 2678052898989, 17902896898419, 137530987695297, 189281899170567, 368055404997498, 14048104419899757, 437893473401621955, 218264275944702783]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.