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A171066 as a simple table

n a(n)
0 0
1 1
2 1
3 9
4 19
5 100
6 279
7 1189
8 3781
9 14661
10 49600
11 184141
12 641421
13 2333629
14 8240959
15 29700900
16 105561739
17 378777169
18 1350292761
19 4835148121
20 17260998400
21 61748847081
22 220582688041
23 788748162049
24 2818480203099
25 10076047502500

[0,1,1,9,19,100,279,1189,3781,14661,49600,184141,
 641421,2333629,8240959,29700900,105561739,
 378777169,1350292761,4835148121,17260998400,
 61748847081,220582688041,788748162049,
 2818480203099,10076047502500]

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Last modified April 23 15:20 EDT 2024. Contains 371916 sequences. (Running on oeis4.)