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A072297 as a simple table

na(n)
10
20
30
41
52
66
710
823
948
1099
11194
12392
13791
141600
153290
166810
1713900
1828269
1957455
20116213
21234237
22470861
23945510
241897007
253802257
267616206
2715244011
2830493702
2960965480
30121838430
31243409121
32486131077
33970680425
341937876841
353868346975

[0,0,0,1,2,6,10,23,48,99,194,392,791,1600,3290,
 6810,13900,28269,57455,116213,234237,470861,
 945510,1897007,3802257,7616206,15244011,30493702,
 60965480,121838430,243409121,486131077,970680425,
 1937876841,3868346975]