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A275755 as a simple table

na(n)
11
21
32
46
519
665
7234
8873
93346
1013099
1152154
12210541
13859768
143545263
1514741148
1661736903
17260192880
181102704585
194696416190
2020090502706
2186285786519
22371917832707
231608317086940
246975728777332
2530338392601498
26132277349730004
27578075052215714
282531710609461484
2911109852467209553
3048843541287179595
31215108137824940916
32948874606956945665
334191979050580762418
3418545890698661636784
3582159569800859439840
36364432560308538162214
371618431087549954575022

[1,1,2,6,19,65,234,873,3346,13099,52154,210541,
 859768,3545263,14741148,61736903,260192880,
 1102704585,4696416190,20090502706,86285786519,
 371917832707,1608317086940,6975728777332,
 30338392601498,132277349730004,578075052215714,
 2531710609461484,11109852467209553,
 48843541287179595,215108137824940916,
 948874606956945665,4191979050580762418,
 18545890698661636784,82159569800859439840,
 364432560308538162214,1618431087549954575022]