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A173000 as a simple table

n a(n)
0 1
1 45
2 1215
3 25515
4 459270
5 7440174
6 111602610
7 1578379770
8 21308126895
9 277005649635
10 3490271185401
11 42835146366285
12 514021756395420
13 6049640671423020
14 70002984912180660
15 798034027998859524

[1,45,1215,25515,459270,7440174,111602610,
 1578379770,21308126895,277005649635,3490271185401,
 42835146366285,514021756395420,6049640671423020,
 70002984912180660,798034027998859524]

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Last modified August 6 12:33 EDT 2020. Contains 336246 sequences. (Running on oeis4.)