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A165203 as a simple table

na(n)
01
15
220
381
4332
51372
65702
723793
899576
9417664
101754866
117383204
1231096466
13131084954
14552969854
152334012425
169856336324
1741639407776
18175971686398
19743888534968
203145439344550
2113302946909338
2256272308538682

[1,5,20,81,332,1372,5702,23793,99576,417664,
 1754866,7383204,31096466,131084954,552969854,
 2334012425,9856336324,41639407776,175971686398,
 743888534968,3145439344550,13302946909338,
 56272308538682]