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A007492 as a simple table

na(n)
12
20
33
42
56
67
714
820
935
1054
1190
12143
13234
14376
15611
16986
171598
182583
194182
206764
2110947
2217710
2328658
2446367
2575026
26121392
27196419
28317810
29514230
30832039
311346270
322178308
333524579
345702886
359227466
3614930351
3724157818
3839088168

[2,0,3,2,6,7,14,20,35,54,90,143,234,376,611,986,
 1598,2583,4182,6764,10947,17710,28658,46367,75026,
 121392,196419,317810,514230,832039,1346270,
 2178308,3524579,5702886,9227466,14930351,24157818,
 39088168]