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.

A294312 Expansion of e.g.f. sec(x*exp(x)).

Table of values

n a(n)
0 1
1 0
2 1
3 6
4 29
5 180
6 1501
7 14434
8 154265
9 1856232
10 24953401
11 368767102
12 5936244533
13 103519338780
14 1944554725205
15 39134556793050
16 840024295910833
17 19157944025344464
18 462629389438242673
19 11792248121970820598
20 316398168231432879565
21 8913743651504295251844

List of values

[1, 0, 1, 6, 29, 180, 1501, 14434, 154265, 1856232, 24953401, 368767102, 5936244533, 103519338780, 1944554725205, 39134556793050, 840024295910833, 19157944025344464, 462629389438242673, 11792248121970820598, 316398168231432879565, 8913743651504295251844]

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

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