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.

A328133 Exponential (2,4)-perfect numbers: numbers m such that esigma(esigma(m)) = 4m, where esigma(m) is the sum of exponential divisors of m (A051377).

Table of values

n a(n)
1 540
2 3780
3 5940
4 7020
5 9180
6 10260
7 12420
8 15660
9 16740
10 19980
11 22140
12 23220
13 25380
14 28620
15 31860
16 32940
17 36180
18 38340
19 39420
20 41580
21 42660
22 44820
23 48060
24 49140
25 52380
26 54540
27 55620
28 57780
29 58860
30 61020
31 64260
32 68580
33 70740
34 71820
35 73980
36 75060
37 77220
38 80460

List of values

[540, 3780, 5940, 7020, 9180, 10260, 12420, 15660, 16740, 19980, 22140, 23220, 25380, 28620, 31860, 32940, 36180, 38340, 39420, 41580, 42660, 44820, 48060, 49140, 52380, 54540, 55620, 57780, 58860, 61020, 64260, 68580, 70740, 71820, 73980, 75060, 77220, 80460]