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.

A048435 Take the first n numbers written in base 3, concatenate them, then convert from base 3 to base 10.

Table of values

n a(n)
1 1
2 5
3 48
4 436
5 3929
6 35367
7 318310
8 2864798
9 77349555
10 2088437995
11 56387825876
12 1522471298664
13 41106725063941
14 1109881576726421
15 29966802571613382
16 809103669433561330
17 21845799074706155927
18 589836575017066210047
19 15925587525460787671288
20 429990863187441267124796

List of values

[1, 5, 48, 436, 3929, 35367, 318310, 2864798, 77349555, 2088437995, 56387825876, 1522471298664, 41106725063941, 1109881576726421, 29966802571613382, 809103669433561330, 21845799074706155927, 589836575017066210047, 15925587525460787671288, 429990863187441267124796]