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A052813 as a simple table

na(n)
01
11
24
327
4260
53280
651414
7965762
821175496
9531317520
1015021531840
11472654558992
1216385500397496
13620612495460048
1425500923655523848
151129909190812470840
1653705490284841870144
172725878142900911376896

[1,1,4,27,260,3280,51414,965762,21175496,
 531317520,15021531840,472654558992,16385500397496,
 620612495460048,25500923655523848,
 1129909190812470840,53705490284841870144,
 2725878142900911376896]