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A219969 as a simple table

na(n)
01
10
22
34
48
528
665
7170
8456
91177
103068
118016
1221028
1354696
14142908
15374527
16976022
172551162
186674999
1917422250
2045536000
21119053392
22310969076
23812695944
242124175469
255550025712
2614503987368
2737905500955
2899050326532
29258846292750
30676453686574

[1,0,2,4,8,28,65,170,456,1177,3068,8016,21028,
 54696,142908,374527,976022,2551162,6674999,
 17422250,45536000,119053392,310969076,812695944,
 2124175469,5550025712,14503987368,37905500955,
 99050326532,258846292750,676453686574]