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A199227 as a simple table

na(n)
115
2739
310790
41167274
549412210
6792389959
796560931821
84344228334421
970560352612852
109143396401034088
11423459039709699782
126930757850616949157
13929406888198274113203
1443797877181608849827451
15720360643744861532076328

[15,739,10790,1167274,49412210,792389959,
 96560931821,4344228334421,70560352612852,
 9143396401034088,423459039709699782,
 6930757850616949157,929406888198274113203,
 43797877181608849827451,720360643744861532076328]