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A245946 as a simple table

na(n)
1453
21889
37769
431465
5128649
6525041
72141609
88740385
935666177
10145538749
11593901081
122423511809
139889552885
1440356071813
15164679993617
16672005573917
172742236755101
1811190178304945
1945663487141625
20186337877072653

[453,1889,7769,31465,128649,525041,2141609,
 8740385,35666177,145538749,593901081,2423511809,
 9889552885,40356071813,164679993617,672005573917,
 2742236755101,11190178304945,45663487141625,
 186337877072653]