A246317 A246316(2^n-1).
1, 4, 12, 40, 176, 724, 3276, 14620, 61044, 250396, 1012804, 4076236, 16344284, 65471860, 262071708, 1048641260
Offset: 0
Crossrefs
Cf. A246316.
Extensions
a(8)-a(15) from Lars Blomberg, Jun 14 2016
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.
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