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.

A224415 G.f.: exp( Sum_{n>=1} 5*L(n)*x^n/n ) where L(n) = Fibonacci(n-1)^2 + Fibonacci(n+1)^2 = A069921(n-1).

Table of values

n a(n)
0 1
1 5
2 25
3 100
4 380
5 1348
6 4610
7 15250
8 49250
9 155860
10 485228
11 1489780
12 4520475
13 13577775
14 40423155
15 119413496
16 350336200
17 1021523000
18 2962214500
19 8547193700
20 24551057380
21 70231278200
22 200150437000
23 568435763000
24 1609247086325
25 4542394525369
26 12786764813645

List of values

[1, 5, 25, 100, 380, 1348, 4610, 15250, 49250, 155860, 485228, 1489780, 4520475, 13577775, 40423155, 119413496, 350336200, 1021523000, 2962214500, 8547193700, 24551057380, 70231278200, 200150437000, 568435763000, 1609247086325, 4542394525369, 12786764813645]