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A041761 as a simple table

n a(n)
0 1
1 40
2 1601
3 64080
4 2564801
5 102656120
6 4108809601
7 164455040160
8 6582310416001
9 263456871680200
10 10544857177624001
11 422057743976640240
12 16892854616243233601
13 676136242393705984280
14 27062342550364482604801
15 1083169838256973010176320

[1,40,1601,64080,2564801,102656120,4108809601,
 164455040160,6582310416001,263456871680200,
 10544857177624001,422057743976640240,
 16892854616243233601,676136242393705984280,
 27062342550364482604801,1083169838256973010176320]

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Last modified September 22 20:30 EDT 2018. Contains 315270 sequences. (Running on oeis4.)