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.

A009252 E.g.f. exp(x*tan(x)) (even powers only).

Table of values

n a(n)
0 1
1 2
2 20
3 456
4 18192
5 1111840
6 96035136
7 11101474944
8 1651123634432
9 306656507699712
10 69472549405824000
11 18838618322988648448
12 6019938761233443262464
13 2237523930630521828745216
14 956638251655236579066724352
15 465986443313532664723710443520
16 256462409164406988067105270726656

List of values

[1, 2, 20, 456, 18192, 1111840, 96035136, 11101474944, 1651123634432, 306656507699712, 69472549405824000, 18838618322988648448, 6019938761233443262464, 2237523930630521828745216, 956638251655236579066724352, 465986443313532664723710443520, 256462409164406988067105270726656]

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

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