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A309976 as a simple table

na(n)
01
10
20
31
40
52
61
75
84
915
1014
1148
1249
13159
14173
15540
16616
171869
182211
196565
207994
2123335
2229092
2383756
24106489
25303093
26391815
271104490
281448313
294049108
305375784
3114922313
3220028144
3355248554
3474869485
35205394737
36280737471
37766396430
381055627409
392869157740
403979545798
4110773488687
4215037617603

[1,0,0,1,0,2,1,5,4,15,14,48,49,159,173,540,616,
 1869,2211,6565,7994,23335,29092,83756,106489,
 303093,391815,1104490,1448313,4049108,5375784,
 14922313,20028144,55248554,74869485,205394737,
 280737471,766396430,1055627409,2869157740,
 3979545798,10773488687,15037617603]