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.

A009518 Expansion of e.g.f. sin(tan(x)^2) (even powers only).

Table of values

n a(n)
0 0
1 2
2 16
3 152
4 -5504
5 -1107808
6 -155757824
7 -22741022848
8 -3557729644544
9 -565165935635968
10 -73212906789515264
11 4150737348343519232
12 11583034460298696687616
13 8797240254608561943191552

List of values

[0, 2, 16, 152, -5504, -1107808, -155757824, -22741022848, -3557729644544, -565165935635968, -73212906789515264, 4150737348343519232, 11583034460298696687616, 8797240254608561943191552]

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

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