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A074099 as a simple table

na(n)
11
21
31
42
53
65
79
816
928
1051
1193
12170
13315
14585
151092
162048
173855
187281
1913797
2026214
2149932

[1,1,1,2,3,5,9,16,28,51,93,170,315,585,1092,2048,
 3855,7281,13797,26214,49932]