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A236601 as a simple table

na(n)
1256
22596
32596
425950
555000
625950
7256376
81110784
91110784
10256376
112525698
1221573924
1344087440
1421573924
152525698
1624922062
17415734304
181595240268
191595240268
20415734304
2124922062
22246386369
238222889690
2459688228619

[256,2596,2596,25950,55000,25950,256376,1110784,
 1110784,256376,2525698,21573924,44087440,21573924,
 2525698,24922062,415734304,1595240268,1595240268,
 415734304,24922062,246386369,8222889690,
 59688228619]