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A115196 as a simple table

na(n)
21
31
42
51
63
76
81
94
1015
1113
121
135
1430
1582
1637
171
186
1951
20301
21578
22106
231
247
2580
26842
274985
286021
29409
301
318
32117
331995
3427107
35142276
36101267
371896
381
399
40164
414210
42112225
431724440
447269487
452882460
4612171

[1,1,2,1,3,6,1,4,15,13,1,5,30,82,37,1,6,51,301,
 578,106,1,7,80,842,4985,6021,409,1,8,117,1995,
 27107,142276,101267,1896,1,9,164,4210,112225,
 1724440,7269487,2882460,12171]