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.

A279839 E.g.f. A(x) satisfies: A( tan( A(x) ) ) = tanh(x).

Table of values

n a(n)
1 1
2 -2
3 20
4 -496
5 23120
6 -1747360
7 195269568
8 -30288321792
9 6227935871232
10 -1639388975800832
11 537520438716580864
12 -214739554795652526080
13 102653241459277667225600
14 -57838071113129054500200448
15 37921092324167375349735014400
16 -28616681138798042948070311264256
17 24621851021674983535130840611749888

List of values

[1, -2, 20, -496, 23120, -1747360, 195269568, -30288321792, 6227935871232, -1639388975800832, 537520438716580864, -214739554795652526080, 102653241459277667225600, -57838071113129054500200448, 37921092324167375349735014400, -28616681138798042948070311264256, 24621851021674983535130840611749888]