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A230553 as a simple table

na(n)
01
11
22
34
410
524
662
7156
8406
91040
102714
117012
1218322
1347560
14124358
15323708
16846766
172208032
185777330
1915082372
2039469786

[1,1,2,4,10,24,62,156,406,1040,2714,7012,18322,
 47560,124358,323708,846766,2208032,5777330,
 15082372,39469786]