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A051931 as a simple table

na(n)
07
11
243
3229
41447
58881
654763
7337429
82079367
912813601
1078961003
11486579589
122998438567
1318477210961
14113861704363
15701647437109
164323746327047
1726644125399361
18164188498723243
191011775117738789
206234839205156007
2138420810348674801
22236759701297204843

[7,1,43,229,1447,8881,54763,337429,2079367,
 12813601,78961003,486579589,2998438567,
 18477210961,113861704363,701647437109,
 4323746327047,26644125399361,164188498723243,
 1011775117738789,6234839205156007,
 38420810348674801,236759701297204843]