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A046907 as a simple table

na(n)
01
11
21
32
47
531
6184
71351
812524
9146468
102177570
1141374407
121008220289
1331559446774
141269310589336
1565562045668340
164345161435996517

[1,1,1,2,7,31,184,1351,12524,146468,2177570,
 41374407,1008220289,31559446774,1269310589336,
 65562045668340,4345161435996517]