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A233139 as a simple table

na(n)
01
10
20
30
42
54
68
718
844
9104
10242
11564
121320
133090
147228
1516904
1639538
1792484
18216328
19506002
201183564
212768424
226475506
2315146580
2435428712
2582869778
26193837148
27453396168
281060519538
292480615780
305802302024
3113571915922
3231745486700
3374254506984

[1,0,0,0,2,4,8,18,44,104,242,564,1320,3090,7228,
 16904,39538,92484,216328,506002,1183564,2768424,
 6475506,15146580,35428712,82869778,193837148,
 453396168,1060519538,2480615780,5802302024,
 13571915922,31745486700,74254506984]