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A252285 as a simple table

na(n)
1564
21920
38208
468320
51227461
641069194
72178722578
8178658210404
922705656001038
104445145404367921

[564,1920,8208,68320,1227461,41069194,2178722578,
 178658210404,22705656001038,4445145404367921]