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A089949 as a simple table

na(n)
01
10
21
30
41
52
60
71
86
96
100
111
1212
1334
1424
150
161
1720
18110
19210
20120
210
221
2330
24270
25974
261452
27720
280
291
3042
31560
323248
338946
3411256
355040
360
371
3856
391036
408792
4138338
4287504
4397296
4440320
450
461
4772
481764
4920580
50129834
51463050
52920184
53930960
54362880

[1,0,1,0,1,2,0,1,6,6,0,1,12,34,24,0,1,20,110,210,
 120,0,1,30,270,974,1452,720,0,1,42,560,3248,8946,
 11256,5040,0,1,56,1036,8792,38338,87504,97296,
 40320,0,1,72,1764,20580,129834,463050,920184,
 930960,362880]