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.

A080094 Let sum(k>=0, k^n/(2*k+1)!) = (x(n)*e + y(n)/e)/z(n), where x(n) and z(n) are >0, then a(n)=y(n).

Table of values

n a(n)
1 1
2 -3
3 3
4 -1
5 3
6 -5
7 -2
8 -5
9 55
10 106
11 201
12 -2381
13 -7675
14 -35183
15 145359
16 910719
17 8117231
18 521487
19 -139498274
20 -2261959961
21 -7554900397
22 17363594398
23 690775844605
24 4901767330647
25 5460910088617
26 -179314430713387
27 -2668801066419061
28 -9075259309421889
29 -20645060784367893

List of values

[1, -3, 3, -1, 3, -5, -2, -5, 55, 106, 201, -2381, -7675, -35183, 145359, 910719, 8117231, 521487, -139498274, -2261959961, -7554900397, 17363594398, 690775844605, 4901767330647, 5460910088617, -179314430713387, -2668801066419061, -9075259309421889, -20645060784367893]