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.

A345200 G.f. A(x) satisfies: A(x) = x + x^2 * exp(2 * Sum_{k>=1} A(x^k) / k).

Table of values

n a(n)
1 1
2 1
3 2
4 5
5 12
6 32
7 84
8 234
9 652
10 1872
11 5416
12 15922
13 47188
14 141283
15 425910
16 1293105
17 3948080
18 12118619
19 37367694
20 115708111
21 359623780
22 1121543440
23 3508533500
24 11006973980
25 34620982004
26 109157354769
27 344928572562
28 1092190467567
29 3464955417200
30 11012117992012

List of values

[1, 1, 2, 5, 12, 32, 84, 234, 652, 1872, 5416, 15922, 47188, 141283, 425910, 1293105, 3948080, 12118619, 37367694, 115708111, 359623780, 1121543440, 3508533500, 11006973980, 34620982004, 109157354769, 344928572562, 1092190467567, 3464955417200, 11012117992012]

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

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