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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.

A380801 Expansion of e.g.f. ( (1/x) * Series_Reversion( x * exp(-x / (1 - x)^2) ) )^2.

Table of values

n a(n)
0 1
1 2
2 16
3 206
4 3792
5 91402
6 2733376
7 97793334
8 4078001920
9 194355934802
10 10426538225664
11 621994665546718
12 40852668904155136
13 2929900797265945050
14 227853412116442243072
15 19100256246157081925318
16 1716982264495843606462464
17 164771462679434867316243874

List of values

[1, 2, 16, 206, 3792, 91402, 2733376, 97793334, 4078001920, 194355934802, 10426538225664, 621994665546718, 40852668904155136, 2929900797265945050, 227853412116442243072, 19100256246157081925318, 1716982264495843606462464, 164771462679434867316243874]

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

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