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A129003 as a simple table

n a(n)
1 6
2 108
3 972
4 6480
5 36450
6 183708
7 857304
8 3779136
9 15943230
10 64953900
11 257217444
12 994857552
13 3772168218
14 14061928860
15 51656065200
16 187339329792
17 671787127926
18 2384960530284
19 8391527791740
20 29288988968400
21 101486346775506

[6,108,972,6480,36450,183708,857304,3779136,
 15943230,64953900,257217444,994857552,3772168218,
 14061928860,51656065200,187339329792,671787127926,
 2384960530284,8391527791740,29288988968400,
 101486346775506]

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Last modified April 26 07:06 EDT 2024. Contains 371990 sequences. (Running on oeis4.)