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A293006 as a simple table

na(n)
00
10
22
38
424
568
6188
7516
81412
93860
1010548
1128820
1278740
13215124
14587732
151605716
164386900
1711985236
1832744276
1989459028
20244406612
21667731284
221824275796
234984014164
2413616579924
2537201188180
26101635536212
27277673448788
28758617970004
292072582837588

[0,0,2,8,24,68,188,516,1412,3860,10548,28820,
 78740,215124,587732,1605716,4386900,11985236,
 32744276,89459028,244406612,667731284,1824275796,
 4984014164,13616579924,37201188180,101635536212,
 277673448788,758617970004,2072582837588]