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A119915 as a simple table

na(n)
00
11
24
313
440
5117
6332
7921
82512
96761
1018004
1147525
12124536
13324317
14840092
152166065
165562272
1714232273
1836300196
1992321085
20234192584
21592695109
221496810732
233772761289
249492450672
2523844342073
2659804611060
27149787196117

[0,1,4,13,40,117,332,921,2512,6761,18004,47525,
 124536,324317,840092,2166065,5562272,14232273,
 36300196,92321085,234192584,592695109,1496810732,
 3772761289,9492450672,23844342073,59804611060,
 149787196117]