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.

A154888 Number of ways to partition 1 into distinct reduced fractions i/j with j <= n.

Table of values

n a(n)
1 1
2 1
3 2
4 3
5 5
6 7
7 11
8 16
9 24
10 37
11 48
12 71
13 88
14 133
15 284
16 435
17 472
18 773
19 826
20 1835
21 4369
22 5546
23 5649
24 9924
25 16465
26 19944
27 32324
28 75913
29 76168
30 140802
31 141141
32 238514
33 537697
34 598296
35 2556065
36 4674085
37 4674844
38 4985386
39 9716587
40 23983712
41 23984971
42 48523606
43 48525215

List of values

[1, 1, 2, 3, 5, 7, 11, 16, 24, 37, 48, 71, 88, 133, 284, 435, 472, 773, 826, 1835, 4369, 5546, 5649, 9924, 16465, 19944, 32324, 75913, 76168, 140802, 141141, 238514, 537697, 598296, 2556065, 4674085, 4674844, 4985386, 9716587, 23983712, 23984971, 48523606, 48525215]

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

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