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A015260 as a simple table

n a(n)
2 1
3 73
4 5986
5 484210
6 39226915
7 3177326971
8 257363962948
9 20846476694116
10 1688564650965445
11 136773736379522605
12 11078672649879436966
13 897372484611991440598
14 72687171253825493271271
15 5887660871557577275727455
16 476900530596184348447133320 

[1,73,5986,484210,39226915,3177326971,
 257363962948,20846476694116,1688564650965445,
 136773736379522605,11078672649879436966,
 897372484611991440598,72687171253825493271271,
 5887660871557577275727455,
 476900530596184348447133320]

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Last modified April 19 07:33 EDT 2024. Contains 371782 sequences. (Running on oeis4.)