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.

A250551 Denominator of the harmonic mean of the first n positive 10-gonal numbers.

Table of values

n a(n)
1 1
2 11
3 307
4 8117
5 139393
6 982381
7 4935773
8 287319059
9 1056494083
10 39179109811
11 1609331378051
12 4835480422963
13 33892787092141
14 1798339013862173
15 34201770221163407
16 4176177999344899729
17 4179324192635626369
18 32062945622467289429
19 2341997846273161559117

List of values

[1, 11, 307, 8117, 139393, 982381, 4935773, 287319059, 1056494083, 39179109811, 1609331378051, 4835480422963, 33892787092141, 1798339013862173, 34201770221163407, 4176177999344899729, 4179324192635626369, 32062945622467289429, 2341997846273161559117]

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

Content is available under The OEIS End-User License Agreement.