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A038719 as a simple table

na(n)
01
12
21
34
45
52
68
719
818
96
1016
1165
12110
1384
1424
1532
16211
17570
18750
19480
20120
2164
22665
232702
245460
255880
263240
27720
28128
292059
3012138
3135406
3257120
3352080
3425200
355040
36256
376305
3852670
39213444
40484344
41650160
42514080
43221760
4440320
45512
4619171

[1,2,1,4,5,2,8,19,18,6,16,65,110,84,24,32,211,570,
 750,480,120,64,665,2702,5460,5880,3240,720,128,
 2059,12138,35406,57120,52080,25200,5040,256,6305,
 52670,213444,484344,650160,514080,221760,40320,
 512,19171]