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.

A208480 Number of representations of n as m_1/1 + m_2/2 + ... + m_n/n where m_i are nonnegative integers.

Table of values

n a(n)
1 1
2 3
3 10
4 55
5 196
6 2730
7 10032
8 108999
9 973258
10 20780331
11 79309308
12 2614200602
13 10073335754
14 288845706742
15 11805287917646
16 254331289285523
17 997748503737330
18 45462847634946017
19 179126790937098750
20 9868487079517742715
21 566191988798860895880
22 24134174584419467066865

List of values

[1, 3, 10, 55, 196, 2730, 10032, 108999, 973258, 20780331, 79309308, 2614200602, 10073335754, 288845706742, 11805287917646, 254331289285523, 997748503737330, 45462847634946017, 179126790937098750, 9868487079517742715, 566191988798860895880, 24134174584419467066865]

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

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