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A013890 as a simple table

n a(n)
0 19
1 47045881
2 116490258898219
3 288441413567621167681
4 714209495693373205673756419
5 1768453418076865701195582595329481
6 4378865740046709085864680868712732574619
7 10842505080063916320800450434338728415281531281
8 26847115986241183138017674520015691090350184323352819 

[19,47045881,116490258898219,
 288441413567621167681,714209495693373205673756419,
 1768453418076865701195582595329481,
 4378865740046709085864680868712732574619,
 10842505080063916320800450434338728415281531281,
 26847115986241183138017674520015691090350184323352\
 819]

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