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.

A291744 G.f. A(x) satisfies: A(x - x*A(x)) = x + 2*x*A(x).

Table of values

n a(n)
1 1
2 3
3 15
4 105
5 897
6 8739
7 93663
8 1080909
9 13246017
10 170728251
11 2298619851
12 32162768805
13 465875706873
14 6964550221215
15 107193366978651
16 1695277029466917
17 27504875620268325
18 457183442035485927
19 7776605660061178251
20 135234473290510961097
21 2402252449086179775861
22 43557766261735276367055
23 805650777590230815177879
24 15191845940176304945626737
25 291896599103455803872483709
26 5712079123789080942126760083

List of values

[1, 3, 15, 105, 897, 8739, 93663, 1080909, 13246017, 170728251, 2298619851, 32162768805, 465875706873, 6964550221215, 107193366978651, 1695277029466917, 27504875620268325, 457183442035485927, 7776605660061178251, 135234473290510961097, 2402252449086179775861, 43557766261735276367055, 805650777590230815177879, 15191845940176304945626737, 291896599103455803872483709, 5712079123789080942126760083]

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

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