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A326618 as a simple table

na(n)
01
13
2262657
3387440173
468719738881
53814699218751
6101559966746113
71628413638264057
818014398643699713
9150094635684419611
101000000001000000001
115559917315850179173
1226623333286045024257
13112455406962561892503
14426878854231297789441
151477891880073843750001

[1,3,262657,387440173,68719738881,3814699218751,
 101559966746113,1628413638264057,
 18014398643699713,150094635684419611,
 1000000001000000001,5559917315850179173,
 26623333286045024257,112455406962561892503,
 426878854231297789441,1477891880073843750001]