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A266310 as a simple table

na(n)
12
27
339
4265
51802
612239
784614
8597601
94289844
1031138558
11227912351
121679866698
1312457873439
1492883320659
15695746287346
165232714491851
1739496475643074
18299071199295812
192271081847307045
2017290623003826450

[2,7,39,265,1802,12239,84614,597601,4289844,
 31138558,227912351,1679866698,12457873439,
 92883320659,695746287346,5232714491851,
 39496475643074,299071199295812,2271081847307045,
 17290623003826450]