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A306618 as a simple table

na(n)
11
22
37
43
578
64
751
8732
9277
10191
116
1244
1320621
14122
15416941
168
175123
1825
191034
209
213993882
22210107
23203100
2410
251325
265248
2765030839
2820107956
2930953
304584105462
311036
324889
33295081
3458746
3520725
3698465863939
371494439626
381612
3910173
406040149252
41102607
429460742124

[1,2,7,3,78,4,51,732,277,191,6,44,20621,122,
 416941,8,5123,25,1034,9,3993882,210107,203100,10,
 1325,5248,65030839,20107956,30953,4584105462,1036,
 4889,295081,58746,20725,98465863939,1494439626,
 1612,10173,6040149252,102607,9460742124]