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.

A294119 Expansion of e.g.f.: exp(2*((1+x)^2 - 1)).

Table of values

n a(n)
0 1
1 4
2 20
3 112
4 688
5 4544
6 31936
7 236800
8 1841408
9 14943232
10 126063616
11 1101983744
12 9954734080
13 92714156032
14 888502796288
15 8746003922944
16 88294183469056
17 912920984944640
18 9655688415674368
19 104353064578711552
20 1151244577906098176
21 12953223477921316864

List of values

[1, 4, 20, 112, 688, 4544, 31936, 236800, 1841408, 14943232, 126063616, 1101983744, 9954734080, 92714156032, 888502796288, 8746003922944, 88294183469056, 912920984944640, 9655688415674368, 104353064578711552, 1151244577906098176, 12953223477921316864]

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

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