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A247443 as a simple table

na(n)
01
10
22
30
46
516
632
7104
8186
9800
101700
114836
1211186
1329940
1484388
15208808
16563364
171391664
183787510
199824684
2025712276
2166815444
22173151378
23457266220
241188536784
253113743272
268087358736
2721152284376
2855283003950
29144314582896
30376852311434
31982507243820

[1,0,2,0,6,16,32,104,186,800,1700,4836,11186,
 29940,84388,208808,563364,1391664,3787510,9824684,
 25712276,66815444,173151378,457266220,1188536784,
 3113743272,8087358736,21152284376,55283003950,
 144314582896,376852311434,982507243820]