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A006191 as a simple table

na(n)
11
22
35
416
554
6180
7595
81964
96485
1021418
1170740
12233640
13771661
142548622
158417525
1627801196
1791821114
18303264540
191001614735
203308108744
2110925940965
2236085931638
23119183735880
24393637139280
251300095153721
264293922600442

[1,2,5,16,54,180,595,1964,6485,21418,70740,233640,
 771661,2548622,8417525,27801196,91821114,
 303264540,1001614735,3308108744,10925940965,
 36085931638,119183735880,393637139280,
 1300095153721,4293922600442]