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.

A064858 Denominators of partial sums of reciprocals of lcm(1..n) = A003418(n).

Table of values

n a(n)
1 1
2 2
3 3
4 4
5 30
6 60
7 14
8 840
9 315
10 504
11 6930
12 9240
13 180180
14 360360
15 30030
16 720720
17 2042040
18 2450448
19 10581480
20 1989680
21 58198140
22 232792560
23 1338557220
24 254963280
25 13385572200
26 26771144400
27 5736673800
28 6177956400
29 291136195350

List of values

[1, 2, 3, 4, 30, 60, 14, 840, 315, 504, 6930, 9240, 180180, 360360, 30030, 720720, 2042040, 2450448, 10581480, 1989680, 58198140, 232792560, 1338557220, 254963280, 13385572200, 26771144400, 5736673800, 6177956400, 291136195350]

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

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