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A254683 as a simple table

na(n)
11
269
31064
48736
549350
6216342
7787968
82489448
97024407
1018074875
1143072848
1296186272
13203145852
14408774588
15788378400
161464523344
172631173181
184587701601
197785938104
2012894168000
2120882898530
2233138238770

[1,69,1064,8736,49350,216342,787968,2489448,
 7024407,18074875,43072848,96186272,203145852,
 408774588,788378400,1464523344,2631173181,
 4587701601,7785938104,12894168000,20882898530,
 33138238770]