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A267344 as a simple table

na(n)
11
21
32
412
545
6135
7388
81220
95401
1027146
11125333
12515897
132010472
148064508
1534936670
16159444254
17725890833
183205348045
1913816812300
2059601118346
21262631332138
221183293213009
235373170070242
2424253891624959
25108483481246313

[1,1,2,12,45,135,388,1220,5401,27146,125333,
 515897,2010472,8064508,34936670,159444254,
 725890833,3205348045,13816812300,59601118346,
 262631332138,1183293213009,5373170070242,
 24253891624959,108483481246313]