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A073568 as a simple table

na(n)
13
24
35
46
58
612
720
824
932
1040
1144
1250
1360
1472
1580
1684
1796
18144
19156
20162
21180
22192
23208
24224
25240
26244
27272
28288
29312
30316
31336
32396
33404
34420
35432
36464
37480
38512
39516
40524
41596
42624
43648
44684
45704
46736
47804

[3,4,5,6,8,12,20,24,32,40,44,50,60,72,80,84,96,
 144,156,162,180,192,208,224,240,244,272,288,312,
 316,336,396,404,420,432,464,480,512,516,524,596,
 624,648,684,704,736,804]