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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.

A100622 Expansion of e.g.f. exp( (1+2*x-sqrt(1-4*x))/4).

Table of values

n a(n)
0 1
1 1
2 2
3 10
4 94
5 1286
6 22876
7 499612
8 12925340
9 386356924
10 13099953016
11 496719289496
12 20825694943912
13 956599393819720
14 47772070664027984
15 2577034852683364816
16 149335440671982405136
17 9251650217381166689552
18 610194993478502245703200
19 42688019374465782644235424

List of values

[1, 1, 2, 10, 94, 1286, 22876, 499612, 12925340, 386356924, 13099953016, 496719289496, 20825694943912, 956599393819720, 47772070664027984, 2577034852683364816, 149335440671982405136, 9251650217381166689552, 610194993478502245703200, 42688019374465782644235424]

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

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