login

A165680 as a simple table

na(n)
11
21
31
41
51
61
71
81
91
102
111
121
131
142
156
161
171
181
192
206
2124
221
231
241
252
266
2724
28120
291
301
311
322
336
3424
35120
36720
371
381
391
402
416
4224
43120
44720
455040
461
471
481
492
506
5124
52120
53720
545040
5540320
561
571
581
592
606
6124
62120
63720
645040
6540320
66362880

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