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A222855 as a simple table

na(n)
12
23
36
410
520
636
774
8137
9282
10536
111100
122117
134332
148406
1517144
1633464
1768058
18133398
19270700
20532230
211078080
222124714
234297434
248485470
2517141764
2633898436
2768409684
28135450295
29273114928
30541320762
311090693986
322163654766
334356757738

[2,3,6,10,20,36,74,137,282,536,1100,2117,4332,
 8406,17144,33464,68058,133398,270700,532230,
 1078080,2124714,4297434,8485470,17141764,33898436,
 68409684,135450295,273114928,541320762,1090693986,
 2163654766,4356757738]