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A247982 as a simple table

na(n)
11
25
347
4733
515907
6443825
715129599
8609432421
928322451979
101491650309705
1187799033276583
125711697248522077
13406948643125302163
1431515118552199419745
152635823964117955940111
16236779241276954626064149
1722736883802469421935493211

[1,5,47,733,15907,443825,15129599,609432421,
 28322451979,1491650309705,87799033276583,
 5711697248522077,406948643125302163,
 31515118552199419745,2635823964117955940111,
 236779241276954626064149,
 22736883802469421935493211]