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A068091 as a simple table

na(n)
11
23
311
444
5186
6814
73648
816611
976437
10354112
111647344
127682237
1335873310
14167625690
15783470179
163662035980
1717115684065
1879986841677
19373759118882
201746296080947

[1,3,11,44,186,814,3648,16611,76437,354112,
 1647344,7682237,35873310,167625690,783470179,
 3662035980,17115684065,79986841677,373759118882,
 1746296080947]