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A186244 as a simple table

na(n)
00
10
21
35
421
579
6281
7963
83217
910547
1034089
11108955
12345137
131085331
143392377
1510549739
1632667201
17100782787
18309946697
19950599131
202908512145
218880484019
2227064776729
2382350874699
24250212362465
25759269653155
262301393567721
276968615051195

[0,0,1,5,21,79,281,963,3217,10547,34089,108955,
 345137,1085331,3392377,10549739,32667201,
 100782787,309946697,950599131,2908512145,
 8880484019,27064776729,82350874699,250212362465,
 759269653155,2301393567721,6968615051195]