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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.

A015018 q-factorial numbers for q=-5.

Table of values

n a(n)
0 1
1 1
2 -4
3 -84
4 8736
5 4551456
6 -11851991424
7 -154324780331904
8 10047160498728278016
9 3270561732706527788046336
10 -5323179358400075453935368658944
11 -43320145405426340445710562789228109824
12 1762701221841919957075369153792221868461981696
13 358622481951075194907281490606356664886183644743663616

List of values

[1, 1, -4, -84, 8736, 4551456, -11851991424, -154324780331904, 10047160498728278016, 3270561732706527788046336, -5323179358400075453935368658944, -43320145405426340445710562789228109824, 1762701221841919957075369153792221868461981696, 358622481951075194907281490606356664886183644743663616]

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

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