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A280275 as a simple table

na(n)
01
11
22
35
412
537
6118
7387
81312
94445
1017034
1173339
12342532
131616721
147299100
1531195418
16129179184
17578924785
183057167242
1918723356715
20120613872016
21738703713245
224080301444740
2320353638923275
2495273007634552
25443132388701107
262149933834972928

[1,1,2,5,12,37,118,387,1312,4445,17034,73339,
 342532,1616721,7299100,31195418,129179184,
 578924785,3057167242,18723356715,120613872016,
 738703713245,4080301444740,20353638923275,
 95273007634552,443132388701107,2149933834972928]