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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.

A386657 E.g.f.: Sum_{n>=0} (4^n*x + LambertW(x))^n / n!.

Table of values

n a(n)
0 1
1 5
2 287
3 274532
4 4362420261
5 1131407873777920
6 4729288202285254702123
7 317048074495318899943286044736
8 340323907513179399929311813628104334217
9 5846207259092593125133941613189798019292422881280

List of values

[1, 5, 287, 274532, 4362420261, 1131407873777920, 4729288202285254702123, 317048074495318899943286044736, 340323907513179399929311813628104334217, 5846207259092593125133941613189798019292422881280]

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

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