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A345678 as a simple table

n a(n)
0 2
1 7
2 51
3 1431
4 614067
5 66738650031
6 481633795381156178667
7 14977615127386478533538545898997567924231
8 8683854397629333456697983311703142268877661823716805568796100445742742964932067 

[2,7,51,1431,614067,66738650031,
 481633795381156178667,
 14977615127386478533538545898997567924231,
 86838543976293334566979833117031422688776618237168\
 05568796100445742742964932067]

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Last modified August 31 11:13 EDT 2024. Contains 375560 sequences. (Running on oeis4.)