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A155795 as a simple table

na(n)
01
11
21
31
42
51
61
76
86
91
101
1124
1224
1324
141
151
16120
170
180
19120
201
211
22720
230
240
250
26720
271
281
295040
300
310
320
330
345040
351
361
3740320
380
390
400
410
420
4340320
441
451
46362880
470
480
490
500
510
520
53362880
541
551
563628800
570
580
590
600
610
620
630
643628800
651

[1,1,1,1,2,1,1,6,6,1,1,24,24,24,1,1,120,0,0,120,1,
 1,720,0,0,0,720,1,1,5040,0,0,0,0,5040,1,1,40320,0,
 0,0,0,0,40320,1,1,362880,0,0,0,0,0,0,362880,1,1,
 3628800,0,0,0,0,0,0,0,3628800,1]