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A348818 as a simple table

na(n)
10
21
3866
44446741
555279816356
61450728060971387
772078730629785795963
86235048155225093080061949
9879601407931825739964190440635
10192100729970218737700046212217095291
1162258393664270652226502315136978421947948
1228913744296806659870889046765907226809528931041

[0,1,866,4446741,55279816356,1450728060971387,
 72078730629785795963,6235048155225093080061949,
 879601407931825739964190440635,
 192100729970218737700046212217095291,
 62258393664270652226502315136978421947948,
 28913744296806659870889046765907226809528931041]