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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.

A022648 Expansion of Product_{m>=1} (1 + m*q^m)^20.

Table of values

n a(n)
0 1
1 20
2 230
3 2000
4 14485
5 91804
6 524710
7 2758520
8 13526430
9 62505180
10 274345784
11 1150868440
12 4637343915
13 18022311520
14 67785066390
15 247453832688
16 878947211030
17 3044142764520
18 10299271911850
19 34095293204360
20 110599636109572
21 351997976703180
22 1100401056566170

List of values

[1, 20, 230, 2000, 14485, 91804, 524710, 2758520, 13526430, 62505180, 274345784, 1150868440, 4637343915, 18022311520, 67785066390, 247453832688, 878947211030, 3044142764520, 10299271911850, 34095293204360, 110599636109572, 351997976703180, 1100401056566170]

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

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