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.

A009562 Expansion of e.g.f. sin(x/cos(x)) (odd powers only).

Table of values

n a(n)
1 1
2 2
3 -4
4 -624
5 -37808
6 -2529440
7 -197245632
8 -17275207936
9 -1517532372736
10 -78275049887232
11 24598365340871680
12 16151599386896207872
13 7394065277787966590976
14 3266488097334689885904896
15 1491592302825720723705577472
16 718708462133271426457747783680

List of values

[1, 2, -4, -624, -37808, -2529440, -197245632, -17275207936, -1517532372736, -78275049887232, 24598365340871680, 16151599386896207872, 7394065277787966590976, 3266488097334689885904896, 1491592302825720723705577472, 718708462133271426457747783680]

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

Content is available under The OEIS End-User License Agreement.