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.

A209429 Numerator of l(n), where l(1)=1, l(2)=2, l(n)=l(n-1)+2*l(n-2)/n.

Table of values

n a(n)
1 1
2 2
3 8
4 11
5 71
6 268
7 2302
8 2771
9 29543
10 172654
11 2194624
12 7533469
13 111102841
14 875654984
15 1335478594
16 16332117629
17 307026528761
18 3040884758542
19 63303287929996
20 345404844856129
21 7886534621278669
22 94005382576044068
23 2335627560917144282
24 7547413632563686237
25 11923476834093824801

List of values

[1, 2, 8, 11, 71, 268, 2302, 2771, 29543, 172654, 2194624, 7533469, 111102841, 875654984, 1335478594, 16332117629, 307026528761, 3040884758542, 63303287929996, 345404844856129, 7886534621278669, 94005382576044068, 2335627560917144282, 7547413632563686237, 11923476834093824801]

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

Content is available under The OEIS End-User License Agreement.