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.

A383991 Series expansion of the exponential generating function exp(-tridend(-x)) - 1 where tridend(x) = (1 - 3*x - sqrt(1-6*x+x^2)) / (4*x) (A001003).

Table of values

n a(n)
0 0
1 1
2 -5
3 49
4 -743
5 15421
6 -407909
7 13135165
8 -498874991
9 21838772377
10 -1082819193029
11 59983280191561
12 -3671752681190615
13 246130081055714389
14 -17932045676505509093
15 1410893903131294766101
16 -119227840965746009631839
17 10769985399394862863318705

List of values

[0, 1, -5, 49, -743, 15421, -407909, 13135165, -498874991, 21838772377, -1082819193029, 59983280191561, -3671752681190615, 246130081055714389, -17932045676505509093, 1410893903131294766101, -119227840965746009631839, 10769985399394862863318705]