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A260006 as a simple table

na(n)
00
13
212
335
490
5217
6504
71143
82550
95621
1012276
1126611
1257330
13122865
14262128
15557039
161179630
172490349
185242860
1911010027
2023068650
2148234473
22100663272
23209715175
24436207590
25905969637
261879048164
273892314083
288053063650
2916642998241
3034359738336

[0,3,12,35,90,217,504,1143,2550,5621,12276,26611,
 57330,122865,262128,557039,1179630,2490349,
 5242860,11010027,23068650,48234473,100663272,
 209715175,436207590,905969637,1879048164,
 3892314083,8053063650,16642998241,34359738336]