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A144696 as a simple table

na(n)
21
31
42
51
67
74
81
918
1033
118
121
1341
14171
15131
1616
171
1888
19718
201208
21473
2232
231
24183
252682
268422
277197
281611
2964
301
31374
329327
3349780
3478095
3538454
365281
37128
381
39757
4030973
41264409
42689155
43621199
44190783
4516867
46256

[1,1,2,1,7,4,1,18,33,8,1,41,171,131,16,1,88,718,
 1208,473,32,1,183,2682,8422,7197,1611,64,1,374,
 9327,49780,78095,38454,5281,128,1,757,30973,
 264409,689155,621199,190783,16867,256]