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A363107 as a simple table

na(n)
01
12
26
320
460
5196
6644
72128
87178
924374
1083496
11288420
121002272
133503748
1412311818
1543458316
16154038006
17548018604
181956263020
197004845080
2025153186956
2190554989440
22326790211458
231181910952584
244283416505940
2515553332981066
2656575492155764
27206136324338908

[1,2,6,20,60,196,644,2128,7178,24374,83496,288420,
 1002272,3503748,12311818,43458316,154038006,
 548018604,1956263020,7004845080,25153186956,
 90554989440,326790211458,1181910952584,
 4283416505940,15553332981066,56575492155764,
 206136324338908]