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A221283 as a simple table

na(n)
01
16
238
3291
42374
520254
6180184
71634372
815037909
9139847905
101311179363
1112372781988

[1,6,38,291,2374,20254,180184,1634372,15037909,
 139847905,1311179363,12372781988]