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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.

A000657 Median Euler numbers (the middle numbers of Arnold's shuttle triangle).

Table of values

n a(n)
0 1
1 1
2 4
3 46
4 1024
5 36976
6 1965664
7 144361456
8 13997185024
9 1731678144256
10 266182076161024
11 49763143319190016
12 11118629668610842624
13 2925890822304510631936
14 895658946905031792553984
15 315558279782214450517374976
16 126780706777739389745128013824

List of values

[1, 1, 4, 46, 1024, 36976, 1965664, 144361456, 13997185024, 1731678144256, 266182076161024, 49763143319190016, 11118629668610842624, 2925890822304510631936, 895658946905031792553984, 315558279782214450517374976, 126780706777739389745128013824]

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

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