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A020963 as a simple table

na(n)
12
26
317
445
5112
6276
7671
81627
93934
109506
1122957
1255433
13133836
14323120
15780091
161883319
174546746
1810976830
1926500425
2063977701
21154455848
22372889420
23900234711
242173358867
255246952470
2612667263834

[2,6,17,45,112,276,671,1627,3934,9506,22957,55433,
 133836,323120,780091,1883319,4546746,10976830,
 26500425,63977701,154455848,372889420,900234711,
 2173358867,5246952470,12667263834]