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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.

A331405 G.f.: 1/(1 - 1*2*x/(1 + 2*3*x/(1 - 3*4*x/(1 + 4*5*x/(1 - 5*6*x/(1 + ...)))))), a continued fraction.

Table of values

n a(n)
0 1
1 2
2 -8
3 -112
4 2176
5 71936
6 -3163136
7 -196237312
8 15258124288
9 1531746516992
10 -185088737017856
11 -27405687884087296
12 4747122204712370176
13 973473732763710390272
14 -228670532983871365971968
15 -62056343388674412796444672
16 18982531521384459634512756736

List of values

[1, 2, -8, -112, 2176, 71936, -3163136, -196237312, 15258124288, 1531746516992, -185088737017856, -27405687884087296, 4747122204712370176, 973473732763710390272, -228670532983871365971968, -62056343388674412796444672, 18982531521384459634512756736]

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

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