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A147155 as a simple table

na(n)
11
21
31
49
533
6113
7789
814705
9402015
1010087297
11406840323
1229140240709
133363961380903

[1,1,1,9,33,113,789,14705,402015,10087297,
 406840323,29140240709,3363961380903]