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.

A077721 Primes which can be expressed as sum of distinct powers of 7.

Table of values

n a(n)
1 7
2 2801
3 17207
4 19559
5 120401
6 134513
7 134807
8 137201
9 840743
10 842759
11 842801
12 941249
13 943601
14 958007
15 958049
16 958343
17 960793
18 5782001
19 5784409
20 5899307
21 5899601
22 5899657
23 5901659
24 6591089
25 6607903
26 6706393
27 6708787
28 6722801
29 6722857
30 6723193

List of values

[7, 2801, 17207, 19559, 120401, 134513, 134807, 137201, 840743, 842759, 842801, 941249, 943601, 958007, 958049, 958343, 960793, 5782001, 5784409, 5899307, 5899601, 5899657, 5901659, 6591089, 6607903, 6706393, 6708787, 6722801, 6722857, 6723193]