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A208198 as a simple table

na(n)
151
241272
339725054
438372808893
537069738362057
635810971705853725
734594950233928279876
833420220819293699707599
932285381308444124871905667
1031189077171790298063795540459
1130129999876244591484571731949842

[51,41272,39725054,38372808893,37069738362057,
 35810971705853725,34594950233928279876,
 33420220819293699707599,
 32285381308444124871905667,
 31189077171790298063795540459,
 30129999876244591484571731949842]