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A248960 as a simple table

na(n)
01
13
29
327
481
5150
6366
7870
82022
94686
1010974
1125614
1259742
13139398
14325350
15759198
161771590
174134126
189647262
1922512342
2052533750
21122590422
22286071414
23667563054
241557794622
253635198310
268482932318
2719795382454
2846193598486
29107795266974
30251546100558
31586996465758
321369788083022

[1,3,9,27,81,150,366,870,2022,4686,10974,25614,
 59742,139398,325350,759198,1771590,4134126,
 9647262,22512342,52533750,122590422,286071414,
 667563054,1557794622,3635198310,8482932318,
 19795382454,46193598486,107795266974,251546100558,
 586996465758,1369788083022]