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A251712 as a simple table

na(n)
00
10
20
31
40
50
60
71
82
94
108
1115
1230
1360
14120
15239
16476
17948
181888
193761
207492
2114924
2229728
2359217
24117958
25234968
26468048
27932335
281857178
293699432
307369136
3114679055
3229240152
3358245336
34116022624
35231112913
36460368648
37917037864
381826706592
393638734129

[0,0,0,1,0,0,0,1,2,4,8,15,30,60,120,239,476,948,
 1888,3761,7492,14924,29728,59217,117958,234968,
 468048,932335,1857178,3699432,7369136,14679055,
 29240152,58245336,116022624,231112913,460368648,
 917037864,1826706592,3638734129]