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A147276 as a simple table

na(n)
11
21
31
41
51
61
71
81
9225
10445
115061
1212325
13159173
14439491
1512030763
1638257835
174443537629
1817894441301
195108288425395
2026137633294785
217314126561550685

[1,1,1,1,1,1,1,1,225,445,5061,12325,159173,439491,
 12030763,38257835,4443537629,17894441301,
 5108288425395,26137633294785,7314126561550685]