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A222902 as a simple table

na(n)
14
225
3373
47794
5180203
64320431
7105327353
82592612272
964243363904
101600125512239
1140022606753953
121004596097977296
1325292398905119297
14638445931307999125
1516152880969313405490
16409495374971029069517

[4,25,373,7794,180203,4320431,105327353,
 2592612272,64243363904,1600125512239,
 40022606753953,1004596097977296,25292398905119297,
 638445931307999125,16152880969313405490,
 409495374971029069517]