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A159439 as a simple table

na(n)
228
335298
481623200
5265194377500
61020872822609520
73966171566405834604
813637571015316967692416
937338965785784768772742560
1074604106269620518362792708200
11101341435185557160806995293905130

[28,35298,81623200,265194377500,1020872822609520,
 3966171566405834604,13637571015316967692416,
 37338965785784768772742560,
 74604106269620518362792708200,
 101341435185557160806995293905130]