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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.

A200320 E.g.f. satisfies: A(x) = x-1 + exp(A(x)^2/2).

Table of values

n a(n)
1 1
2 1
3 3
4 18
5 150
6 1590
7 20580
8 314790
9 5554710
10 111071520
11 2482076520
12 61301435580
13 1658129152680
14 48749053413060
15 1547849157554700
16 52785934927525800
17 1924269399236784600
18 74672595203551745400
19 3073314600152521124400
20 133716009695044269893400
21 6132253708189762323370200

List of values

[1, 1, 3, 18, 150, 1590, 20580, 314790, 5554710, 111071520, 2482076520, 61301435580, 1658129152680, 48749053413060, 1547849157554700, 52785934927525800, 1924269399236784600, 74672595203551745400, 3073314600152521124400, 133716009695044269893400, 6132253708189762323370200]

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

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