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A074027 as a simple table

na(n)
11
20
30
40
51
62
75
88
915
1024
1145
1280
13155
14288
15550
161024
171935
183626
196885
2013056
2124940
2247616
2391225
24174760
25335626
26645120
271242600
282396160
294627915
308947294
3117318945
3233554432
3365076240
34126320640
35245424829
36477211280
37928638035
381808400384
393524082400

[1,0,0,0,1,2,5,8,15,24,45,80,155,288,550,1024,
 1935,3626,6885,13056,24940,47616,91225,174760,
 335626,645120,1242600,2396160,4627915,8947294,
 17318945,33554432,65076240,126320640,245424829,
 477211280,928638035,1808400384,3524082400]