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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.

A104465 a(n) is the least k with n prime factors (counting multiplicity) such that the sum of these n factors divides k. First member of A036844 with n prime factors.

Table of values

n a(n)
1 2
2 4
3 27
4 16
5 72
6 240
7 288
8 256
9 2688
10 3840
11 4608
12 13824
13 30720
14 61440
15 73728
16 65536
17 294912
18 983040
19 4325376
20 5898240
21 11010048
22 15728640
23 18874368
24 141557760
25 169869312
26 654311424
27 1107296256
28 1006632960
29 2818572288
30 4026531840

List of values

[2, 4, 27, 16, 72, 240, 288, 256, 2688, 3840, 4608, 13824, 30720, 61440, 73728, 65536, 294912, 983040, 4325376, 5898240, 11010048, 15728640, 18874368, 141557760, 169869312, 654311424, 1107296256, 1006632960, 2818572288, 4026531840]

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

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