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A241683 as a simple table

na(n)
00
10
20
32
412
550
6220
7882
83612
914450
1058140
11232562
12931612
133726450
1414911260
1559645042
16238602012
17954408050
183817719580
1915270878322
2061083862812
21244335451250
22977343203100
233909372812402

[0,0,0,2,12,50,220,882,3612,14450,58140,232562,
 931612,3726450,14911260,59645042,238602012,
 954408050,3817719580,15270878322,61083862812,
 244335451250,977343203100,3909372812402]