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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.

A386723 Expansion of (1/x) * Series_Reversion( x * (1-x)^3 / (1+2*x)^4 ).

Table of values

n a(n)
0 1
1 11
2 175
3 3275
4 67156
5 1460237
6 33073930
7 771961835
8 18437940220
9 448483875596
10 11071403236807
11 276675755470349
12 6985664542196380
13 177932236341440270
14 4566561255466298500
15 117974930924420353835
16 3065563791639454312492
17 80069021664742889373380

List of values

[1, 11, 175, 3275, 67156, 1460237, 33073930, 771961835, 18437940220, 448483875596, 11071403236807, 276675755470349, 6985664542196380, 177932236341440270, 4566561255466298500, 117974930924420353835, 3065563791639454312492, 80069021664742889373380]

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

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