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A074763 as a simple table

na(n)
12
21
34
44
58
610
720
834
960
10100
11188
12348
13632
141162
152192
164114
177712
1814542
1927596
2052480
2199880
22190558
23364724
24699248
251342184
262580796
274971068
289587560
2918512792
3035790376
3169273668
32134219794
33260301176
34505286416
35981706832

[2,1,4,4,8,10,20,34,60,100,188,348,632,1162,2192,
 4114,7712,14542,27596,52480,99880,190558,364724,
 699248,1342184,2580796,4971068,9587560,18512792,
 35790376,69273668,134219794,260301176,505286416,
 981706832]