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A172020 as a simple table

na(n)
11
21
32
44
58
616
728
849
984
10144
11252
12441
13777
141369
152405
164225
177410
1812996
1922800
2040000
2170200
22123201
23216216
24379456
25665896
261168561
272050657
283598609
296315113
3011082241
3119448018
3234128964
3359892184
34105103504
35184443732
36323676081
37568011852

[1,1,2,4,8,16,28,49,84,144,252,441,777,1369,2405,
 4225,7410,12996,22800,40000,70200,123201,216216,
 379456,665896,1168561,2050657,3598609,6315113,
 11082241,19448018,34128964,59892184,105103504,
 184443732,323676081,568011852]