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A216947 as a simple table

na(n)
01
11
23
311
447
5225
61173
76529
838265
9233795
101478265
119619065
1264135965
13436693431
143028075677
1521335364345
16152466207953
171103356966359
188075335006933
1959706844371261
20445545262970505
213352776605782479
2225424338834654587

[1,1,3,11,47,225,1173,6529,38265,233795,1478265,
 9619065,64135965,436693431,3028075677,21335364345,
 152466207953,1103356966359,8075335006933,
 59706844371261,445545262970505,3352776605782479,
 25424338834654587]