login

A306800 as a simple table

na(n)
01
11
20
31
41
50
61
71
82
90
101
111
124
136
140
151
161
174
1824
1924
200
211
221
234
2427
25204
26120
270
281
291
304
3127
32252
332220
34720
350
361
371
384
3927
40256
413020
4229520
435040
440
451
461
474
4827
49256
503120
5144220
52463680
5340320
540
551
561
574
5827
59256
603125
6146470
62765030
638401680
64362880
650

[1,1,0,1,1,0,1,1,2,0,1,1,4,6,0,1,1,4,24,24,0,1,1,
 4,27,204,120,0,1,1,4,27,252,2220,720,0,1,1,4,27,
 256,3020,29520,5040,0,1,1,4,27,256,3120,44220,
 463680,40320,0,1,1,4,27,256,3125,46470,765030,
 8401680,362880,0]