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A218430 as a simple table

n a(n)
1 54
2 2744280
3 6191640
4 182494620
5 653425920
6 702989280
7 27025270272
8 72475361280
9 76172903718912
10 15224461545984768
11 1688635722988634112
12 5953066676035614584064
13 1608903162935227680030720
14 14600472124349965895417376
15 2263986000385276007625523200 

[54,2744280,6191640,182494620,653425920,702989280,
 27025270272,72475361280,76172903718912,
 15224461545984768,1688635722988634112,
 5953066676035614584064,1608903162935227680030720,
 14600472124349965895417376,
 2263986000385276007625523200]

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Last modified September 16 09:24 EDT 2024. Contains 375965 sequences. (Running on oeis4.)