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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.

A259318 a(n) = A259109(n)*A006331(n) - A259108(n)^2.

Table of values

n a(n)
0 0
1 0
2 144
3 6048
4 85536
5 679536
6 3747744
7 16039296
8 56930688
9 174978144
10 479700144
11 1198248480
12 2770653600
13 6002352720
14 12298837824
15 24014605824
16 44957265408
17 81097765056
18 141549364944
19 239891292576
20 395928108576
21 637992775728
22 1005920381664
23 1554840524160

List of values

[0, 0, 144, 6048, 85536, 679536, 3747744, 16039296, 56930688, 174978144, 479700144, 1198248480, 2770653600, 6002352720, 12298837824, 24014605824, 44957265408, 81097765056, 141549364944, 239891292576, 395928108576, 637992775728, 1005920381664, 1554840524160]

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

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