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.

A347071 E.g.f.: exp(x) * (sec(x) - tan(x)) / (1 - x).

Table of values

n a(n)
0 1
1 1
2 2
3 5
4 20
5 95
6 580
7 3999
8 32272
9 288783
10 2898300
11 31807679
12 382253808
13 4964649079
14 69546528636
15 1042802172359
16 16688865840384
17 283667092507743
18 5106507590277564
19 97017597229232975
20 1940428937186428720
21 40747978365579886375
22 896469940257304900700

List of values

[1, 1, 2, 5, 20, 95, 580, 3999, 32272, 288783, 2898300, 31807679, 382253808, 4964649079, 69546528636, 1042802172359, 16688865840384, 283667092507743, 5106507590277564, 97017597229232975, 1940428937186428720, 40747978365579886375, 896469940257304900700]

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

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