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.

A113255 Corresponds to m = 9 in a family of 4th-order linear recurrence sequences given by a(m,n) = m^4*a(n-4) + (2*m)^2*a(n-3) - 4*a(m-1), a(m,0) = -1, a(m,1) = 4, a(m,2) = -13 + 6*(m-1) + 3*(m-1)^2, a(m,3) = (-8+m^2)^2.

Table of values

n a(n)
0 -1
1 4
2 227
3 5329
4 -26581
5 206116
6 2391479
7 16785409
8 -174757993
9 2826198244
10 9824173259
11 14210785681
12 -287742103741
13 22876687229764
14 -22446053606113
15 89792737665409
16 5164999769137199
17 122161424469552196
18 -606821408584323661
19 4689875711360495569

List of values

[-1, 4, 227, 5329, -26581, 206116, 2391479, 16785409, -174757993, 2826198244, 9824173259, 14210785681, -287742103741, 22876687229764, -22446053606113, 89792737665409, 5164999769137199, 122161424469552196, -606821408584323661, 4689875711360495569]