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.

A092666 a(n) = number of Egyptian fractions 1 = 1/x_1 + ... + 1/x_k (for any k), with 0 < x_1 <= ... <= x_k = n.

Table of values

n a(n)
1 1
2 1
3 1
4 2
5 1
6 7
7 1
8 10
9 10
10 26
11 1
12 107
13 1
14 83
15 375
16 384
17 1
18 1418
19 1
20 4781
21 7812
22 1529
23 1
24 33665
25 9789
26 4276
27 27787
28 168107
29 1
30 584667
31 1
32 586340
33 1177696
34 52334
35 5285597
36 14746041
37 1
38 218959
39 13092673
40 84854683
41 1
42 279357910
43 1
44 491060793
45 2001103921

List of values

[1, 1, 1, 2, 1, 7, 1, 10, 10, 26, 1, 107, 1, 83, 375, 384, 1, 1418, 1, 4781, 7812, 1529, 1, 33665, 9789, 4276, 27787, 168107, 1, 584667, 1, 586340, 1177696, 52334, 5285597, 14746041, 1, 218959, 13092673, 84854683, 1, 279357910, 1, 491060793, 2001103921]

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

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