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A237988 as a simple table

na(n)
00
11
21
32
42
53
67
79
811
927
1034
1143
12104
13131
14165
15400
16504
17635
181539
191939
202443
215921
227460
239399
2422780
2528701
2636161
2787642
28110422
29139123
30337187
31424829
32535251
331297267
341634454
352059283
364991004
376288271
387922725
3919202000
4024193004
4130481275
4273876279
4393078279
44117271283

[0,1,1,2,2,3,7,9,11,27,34,43,104,131,165,400,504,
 635,1539,1939,2443,5921,7460,9399,22780,28701,
 36161,87642,110422,139123,337187,424829,535251,
 1297267,1634454,2059283,4991004,6288271,7922725,
 19202000,24193004,30481275,73876279,93078279,
 117271283]