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.

A131550 a(n) is the least exponent e such that 3^e has exactly n consecutive 3's in its decimal representation.

Table of values

n a(n)
1 1
2 31
3 119
4 185
5 511
6 2341
7 9671
8 7721
9 67449
10 364579
11 513334
12 639227
13 6250772
14 30377688
15 82011443
16 78927181

List of values

[1, 31, 119, 185, 511, 2341, 9671, 7721, 67449, 364579, 513334, 639227, 6250772, 30377688, 82011443, 78927181]