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A209538 as a simple table

n a(n)
1 1
2 2
3 16
4 72
5 243
6 1125
7 5000
8 20480
9 86528
10 371293
11 1565109
12 6612354
13 28063056
14 118894600
15 503284375
16 2132531225
17 9034882704
18 38268370944
19 162106085376
20 686719856393
21 2908947562937
22 12322398111010
23 52198820570000

[1,2,16,72,243,1125,5000,20480,86528,371293,
 1565109,6612354,28063056,118894600,503284375,
 2132531225,9034882704,38268370944,162106085376,
 686719856393,2908947562937,12322398111010,
 52198820570000]

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Last modified February 7 19:43 EST 2023. Contains 360128 sequences. (Running on oeis4.)