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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.

A129882 Sequence i_{t_n} arising in enumeration of arrays of directed blocks (see Quaintance reference for precise definition), where i_n = A129876, t_n = A129875.

Table of values

n a(n)
1 0
2 2
3 4
4 4
5 12
6 18
7 56
8 72

List of values

[0, 2, 4, 4, 12, 18, 56, 72]

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