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.

A058308 a(n) = (n+2)*a(n-1) + a(n-2), with a(0)=0, a(1)=1.

Table of values

n a(n)
0 0
1 1
2 4
3 21
4 130
5 931
6 7578
7 69133
8 698908
9 7757121
10 93784360
11 1226953801
12 17271137574
13 260294017411
14 4181975416150
15 71353876091961
16 1288551745071448
17 24553837032449473
18 492365292394060908
19 10364224977307728541
20 228505314793164088810

List of values

[0, 1, 4, 21, 130, 931, 7578, 69133, 698908, 7757121, 93784360, 1226953801, 17271137574, 260294017411, 4181975416150, 71353876091961, 1288551745071448, 24553837032449473, 492365292394060908, 10364224977307728541, 228505314793164088810]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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