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A324489 as a simple table

na(n)
11
20
321
431
5266
6672
73484
811375
948768
10177023
11716418
122730315
1310878520
1442485638
15169181010
16670042125
172678678730
1810705526976
1943007270292
20173003915322
21698235680844
222822901487191
2311439823946306
2446438021798875
25188856966693230
26769224288476860
273137871076604544
2812817404260955810

[1,0,21,31,266,672,3484,11375,48768,177023,716418,
 2730315,10878520,42485638,169181010,670042125,
 2678678730,10705526976,43007270292,173003915322,
 698235680844,2822901487191,11439823946306,
 46438021798875,188856966693230,769224288476860,
 3137871076604544,12817404260955810]