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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.

A302584 a(n) = n! * [x^n] exp(n*x)/cos(x).

Table of values

n a(n)
0 1
1 1
2 5
3 36
4 357
5 4500
6 68857
7 1239504
8 25661545
9 600655824
10 15684383021
11 452001644864
12 14249852124365
13 487836995500608
14 18022519535240417
15 714658089577017600
16 30275849571771536977
17 1364687729891761740032
18 65213822241378992547925
19 3293203845745202062590976

List of values

[1, 1, 5, 36, 357, 4500, 68857, 1239504, 25661545, 600655824, 15684383021, 452001644864, 14249852124365, 487836995500608, 18022519535240417, 714658089577017600, 30275849571771536977, 1364687729891761740032, 65213822241378992547925, 3293203845745202062590976]

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

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