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A307006 as a simple table

na(n)
01
11
24
320
4130
51052
610214
7115684
81497458
921806372
10352834942
116279885284
12121932835754
132564788969108
1458098821674742
151410088008633812
1636505125340079074
171004131069129741124
1829244927598399536878
19899066450011962665092
2029094401487631077315482
21988590340245276942963764

[1,1,4,20,130,1052,10214,115684,1497458,21806372,
 352834942,6279885284,121932835754,2564788969108,
 58098821674742,1410088008633812,36505125340079074,
 1004131069129741124,29244927598399536878,
 899066450011962665092,29094401487631077315482,
 988590340245276942963764]