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A146143 as a simple table

na(n)
11
21
31
41
513
651
7327
81743
913905
10216443
113286293
1280038799
132242888197
1493345565591
154572631279405
16334861611729305

[1,1,1,1,13,51,327,1743,13905,216443,3286293,
 80038799,2242888197,93345565591,4572631279405,
 334861611729305]