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A144895 as a simple table

n a(n)
0 1
1 2
2 10
3 36
4 204
5 1104
6 7776
7 57600
8 505440
9 4803840
10 51442560
11 597784320
12 7609593600
13 104364288000
14 1541746483200
15 24329797632000
16 409042632499200
17 7290954768384000
18 137384159367168000
19 2727604332085248000
20 56913717580296192000
21 1244955414746824704000

[1,2,10,36,204,1104,7776,57600,505440,4803840,
 51442560,597784320,7609593600,104364288000,
 1541746483200,24329797632000,409042632499200,
 7290954768384000,137384159367168000,
 2727604332085248000,56913717580296192000,
 1244955414746824704000]

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Last modified April 25 12:28 EDT 2024. Contains 371969 sequences. (Running on oeis4.)