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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.

A380215 Expansion of e.g.f. exp( (1+3*x)^(2/3) - 1 ).

Table of values

n a(n)
0 1
1 2
2 2
3 4
4 -12
5 152
6 -2056
7 34064
8 -663792
9 14890656
10 -378083936
11 10721383488
12 -335898007232
13 11523599785856
14 -429685396446848
15 17303743585216768
16 -748494039183318784
17 34612915914568045056
18 -1704065501541830102528
19 88989595986614229074944
20 -4913365756826406035999744

List of values

[1, 2, 2, 4, -12, 152, -2056, 34064, -663792, 14890656, -378083936, 10721383488, -335898007232, 11523599785856, -429685396446848, 17303743585216768, -748494039183318784, 34612915914568045056, -1704065501541830102528, 88989595986614229074944, -4913365756826406035999744]

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

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