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A223559 as a simple table

na(n)
1216
22187
361731
41795473
553599905
61609602003
748435199821
81458216189189
943906852932615
101322067596579721
1139808646082180639
121198675626234407289
1336093255426614169063
141086802077561066049509
1532724639445955516294571

[216,2187,61731,1795473,53599905,1609602003,
 48435199821,1458216189189,43906852932615,
 1322067596579721,39808646082180639,
 1198675626234407289,36093255426614169063,
 1086802077561066049509,32724639445955516294571]