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A247501 as a simple table

na(n)
01
11
21
30
43
52
6-2
74
812
96
100
11-3
1238
1360
1424
1516
16-14
1760
18330
19360
20120
210
2263
232
241200
253000
262520
27720
28-272
29274
30252
313066
3217640
3329400
3420160
355040
360
37-1383
383278
398820
4081144
41246960
42312480
43181440
4440320

[1,1,1,0,3,2,-2,4,12,6,0,-3,38,60,24,16,-14,60,
 330,360,120,0,63,2,1200,3000,2520,720,-272,274,
 252,3066,17640,29400,20160,5040,0,-1383,3278,8820,
 81144,246960,312480,181440,40320]