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A026029 as a simple table

na(n)
01
12
26
320
469
5242
6858
73068
811050
940052
10145996
11534888
121968685
137276050
1426993490
15100490220
16375287550
171405622460
185278838100
1919873977240
2074994427170
21283595947284
221074568266756
234079184055640
2415511924233204
2559083160374952
26225384613313944

[1,2,6,20,69,242,858,3068,11050,40052,145996,
 534888,1968685,7276050,26993490,100490220,
 375287550,1405622460,5278838100,19873977240,
 74994427170,283595947284,1074568266756,
 4079184055640,15511924233204,59083160374952,
 225384613313944]