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A189838 as a simple table

n a(n)
1 1
2 2
3 4
4 16
5 36
6 128
7 672
8 4264
9 25044
10 173712
11 1318904
12 11069056
13 96808692
14 927478976
15 9435033872
16 103783608480
17 1195155968388 

[1,2,4,16,36,128,672,4264,25044,173712,1318904,
 11069056,96808692,927478976,9435033872,
 103783608480,1195155968388]

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Last modified May 17 12:26 EDT 2024. Contains 372600 sequences. (Running on oeis4.)