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A121416 as a simple table

na(n)
01
12
21
37
42
51
643
79
82
91
10403
1169
1211
132
141
155188
16769
17101
1813
192
201
2185569
2211346
231305
24139
2515
262
271
281725291
29208914
3021745
312043
32183
3317
342
351
3641145705
374613976
38443329
3937971
403015
41233
4219
432
441
451133047596
46118840164
4710679494
48850260

[1,2,1,7,2,1,43,9,2,1,403,69,11,2,1,5188,769,101,
 13,2,1,85569,11346,1305,139,15,2,1,1725291,208914,
 21745,2043,183,17,2,1,41145705,4613976,443329,
 37971,3015,233,19,2,1,1133047596,118840164,
 10679494,850260]