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A038044 as a simple table

na(n)
11
21
32
44
59
618
740
880
9168
10340
11698
121396
132844
145688
1511456
1622948
1746072
1892144
19184696
20369392
21739536
221479232
232959860
245919720
2511842696
2623685473
2747376634
2894753940
29189519576
30379039152
31758102900
321516205800

[1,1,2,4,9,18,40,80,168,340,698,1396,2844,5688,
 11456,22948,46072,92144,184696,369392,739536,
 1479232,2959860,5919720,11842696,23685473,
 47376634,94753940,189519576,379039152,758102900,
 1516205800]