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A303835 as a simple table

na(n)
01
11
22
33
48
519
664
7212
8833
93360
1014476
1163848
12289892
131338000
146275589
1529791100
16142973014
17692507861
183382070233
1916638445745
2082395500651
21410463736691
222055858519575
2310347925039015
2452321093290715
25265648012207312
261353953547877556
276925400869302520

[1,1,2,3,8,19,64,212,833,3360,14476,63848,289892,
 1338000,6275589,29791100,142973014,692507861,
 3382070233,16638445745,82395500651,410463736691,
 2055858519575,10347925039015,52321093290715,
 265648012207312,1353953547877556,6925400869302520]