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A255970 as a simple table

na(n)
01
10
21
30
42
52
60
73
88
96
100
115
1224
1342
1424
150
167
1760
18198
19264
20120
210
2211
23144
24780
251848
261920
27720
280
2915
30320
312778
3210512
3318840
3415840
355040
360
3722
38702
399342
4053184
41146760
42208080
43146160
4440320
450
4630
471486
4830186
49250128
50999720
512129040
522479680
531491840
54362880

[1,0,1,0,2,2,0,3,8,6,0,5,24,42,24,0,7,60,198,264,
 120,0,11,144,780,1848,1920,720,0,15,320,2778,
 10512,18840,15840,5040,0,22,702,9342,53184,146760,
 208080,146160,40320,0,30,1486,30186,250128,999720,
 2129040,2479680,1491840,362880]