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.

A348032 Multiply-perfect numbers k that do not have a divisor d such that sigma(d)*d = k.

Table of values

n a(n)
1 2178540
2 45532800
3 459818240
4 1476304896
5 14182439040
6 31998395520
7 43861478400
8 51001180160
9 518666803200
10 704575228896
11 13661860101120
12 30823866178560
13 181742883469056
14 740344994887680
15 796928461056000
16 6088728021160320
17 20158185857531904
18 212517062615531520
19 622286506811515392
20 69357059049509038080
21 87934476737668055040

List of values

[2178540, 45532800, 459818240, 1476304896, 14182439040, 31998395520, 43861478400, 51001180160, 518666803200, 704575228896, 13661860101120, 30823866178560, 181742883469056, 740344994887680, 796928461056000, 6088728021160320, 20158185857531904, 212517062615531520, 622286506811515392, 69357059049509038080, 87934476737668055040]

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

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