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A007167 as a simple table

na(n)
01
11
24
315
462
5271
61247
75938
829113
9145815
10743384
113844314
1220118681
13106348391
14567002169
153045455865
1616463622763
1789509216860
18489103356753
192684663659765
2014795752770278
2181841297482116
22454202999050433
232528381760697852

[1,1,4,15,62,271,1247,5938,29113,145815,743384,
 3844314,20118681,106348391,567002169,3045455865,
 16463622763,89509216860,489103356753,
 2684663659765,14795752770278,81841297482116,
 454202999050433,2528381760697852]