A156827 A001792*A008683.
1, -3, -8, 0, -48, 112, -256, 0, 0, 2816, -6144, 0, -28672, 61440, 131072, 0, -589824, 0, -2621440, 0, 11534336, 24117248, -50331648, 0, 0, 452984832, 0, 0, -4026531840, -8321499136
Offset: 1
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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