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A001189 as a simple table

na(n)
10
21
33
49
525
675
7231
8763
92619
109495
1135695
12140151
13568503
142390479
1510349535
1646206735
17211799311
18997313823
194809701439
2023758664095
21119952692895
22618884638911
233257843882623
2417492190577599
2595680443760575
26532985208200575
273020676745975551

[0,1,3,9,25,75,231,763,2619,9495,35695,140151,
 568503,2390479,10349535,46206735,211799311,
 997313823,4809701439,23758664095,119952692895,
 618884638911,3257843882623,17492190577599,
 95680443760575,532985208200575,3020676745975551]