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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.

A349105 Expansion of e.g.f. 1/(1 - (sinh(x) + x*cosh(x))/2 ).

Table of values

n a(n)
0 1
1 1
2 2
3 8
4 40
5 243
6 1796
7 15502
8 152608
9 1690613
10 20814208
11 281859540
12 4163795648
13 66636761575
14 1148477490304
15 21207704998010
16 417728195909632
17 8742243282090153
18 193720478508563456
19 4531158728871170080
20 111562803180301643776
21 2884156736234559267611

List of values

[1, 1, 2, 8, 40, 243, 1796, 15502, 152608, 1690613, 20814208, 281859540, 4163795648, 66636761575, 1148477490304, 21207704998010, 417728195909632, 8742243282090153, 193720478508563456, 4531158728871170080, 111562803180301643776, 2884156736234559267611]

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

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