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A019142 as a simple table

na(n)
30
42
51
64
76
816
925
10104
11144
12666
131078
143264
157969
1618762
1748833
18124845
19310324
20813758
212063236
225352749
2313889492
2435962972
2594019550
26245375231
27643356339
281692200330
294457714666
3011776895987
3131184936750

[0,2,1,4,6,16,25,104,144,666,1078,3264,7969,18762,
 48833,124845,310324,813758,2063236,5352749,
 13889492,35962972,94019550,245375231,643356339,
 1692200330,4457714666,11776895987,31184936750]