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A200760 as a simple table

na(n)
15
215
342
4113
5297
6767
71957
84947
912419
1031006
1177067
12190855
13471214
141160452
152851731
166995305
1717133294
1841909286
19102399361
20249960246
21609662706
221485944622
233619527395
248811972483
2521443566290
2652161461882
27126839318918

[5,15,42,113,297,767,1957,4947,12419,31006,77067,
 190855,471214,1160452,2851731,6995305,17133294,
 41909286,102399361,249960246,609662706,1485944622,
 3619527395,8811972483,21443566290,52161461882,
 126839318918]