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A051593 as a simple table

na(n)
01
11
21
33
43
55
65
77
815
915
1021
1121
1235
1335
1460
15105
16105
17105
18140
19210
20210
21420
22420
23420
24420
25840
261155
271260
281365
291540
302310
312520
324620
334620
345460
355460
369240
379240
3813860
3915015
4016380
4116380
4227720
4330030
4432760
4560060
4660060
4760060

[1,1,1,3,3,5,5,7,15,15,21,21,35,35,60,105,105,105,
 140,210,210,420,420,420,420,840,1155,1260,1365,
 1540,2310,2520,4620,4620,5460,5460,9240,9240,
 13860,15015,16380,16380,27720,30030,32760,60060,
 60060,60060]