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A378383 as a simple table

na(n)
00
10
20
31
45
519
664
7202
8612
91803
105206
1114809
1241650
13116114
14321478
15885169
162426462
176627499
1818048088
1949026874
20132901176
21359625015
22971639014
232621683741
247065545950
2519022080034
2651163908874
27137499581917
28369235213742
29990822728623
302657069356996

[0,0,0,1,5,19,64,202,612,1803,5206,14809,41650,
 116114,321478,885169,2426462,6627499,18048088,
 49026874,132901176,359625015,971639014,2621683741,
 7065545950,19022080034,51163908874,137499581917,
 369235213742,990822728623,2657069356996]