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.

A330050 a(n) = 2*((-1)^n - 1)*(F(n) - 1) - (3*(-1)^n + 7)/2 * F(n+1) + 5*F(n+1)^2.

Table of values

n a(n)
0 0
1 3
2 10
3 35
4 100
5 288
6 780
7 2115
8 5610
9 14883
10 39160
11 103040
12 270280
13 708963
14 1857450
15 4866435
16 12744060
17 33373728
18 87382900
19 228795875
20 599019850
21 1568318403
22 4105974960
23 10749749760
24 28143378000
25 73680759363
26 192899171530
27 505017737315
28 1322154751060

List of values

[0, 3, 10, 35, 100, 288, 780, 2115, 5610, 14883, 39160, 103040, 270280, 708963, 1857450, 4866435, 12744060, 33373728, 87382900, 228795875, 599019850, 1568318403, 4105974960, 10749749760, 28143378000, 73680759363, 192899171530, 505017737315, 1322154751060]