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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.

A022586 Expansion of Product_{m>=1} (1+x^m)^21.

Table of values

n a(n)
0 1
1 21
2 231
3 1792
4 11067
5 58002
6 268093
7 1120899
8 4315269
9 15497986
10 52441347
11 168487473
12 517184185
13 1524390777
14 4332440454
15 11914441196
16 31798680774
17 82574231187
18 209091601271
19 517272712845
20 1252351944165
21 2971700764941
22 6920411525727
23 15835150526244
24 35640093688017

List of values

[1, 21, 231, 1792, 11067, 58002, 268093, 1120899, 4315269, 15497986, 52441347, 168487473, 517184185, 1524390777, 4332440454, 11914441196, 31798680774, 82574231187, 209091601271, 517272712845, 1252351944165, 2971700764941, 6920411525727, 15835150526244, 35640093688017]

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

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