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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.

A290868 a(n) is the number of fixed tree polycubes of size n that are proper in n-5 dimensions.

Table of values

n a(n)
5 0
6 1
7 568
8 116004
9 15998985
10 1839569920
11 194498568156
12 19903875199488
13 2028587719434848
14 209368404017676288
15 22100537701746000000
16 2400300773277150740480
17 269182253907724040230656
18 31234215889947671471849472
19 3753858472917234012947022848
20 467486957946431078400000000000

List of values

[0, 1, 568, 116004, 15998985, 1839569920, 194498568156, 19903875199488, 2028587719434848, 209368404017676288, 22100537701746000000, 2400300773277150740480, 269182253907724040230656, 31234215889947671471849472, 3753858472917234012947022848, 467486957946431078400000000000]

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

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