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A155242 as a simple table

na(n)
41
57
619
770
8235
91578
109621
1189416
12823589
1311073433
14160764354
153227749885
1673045396627
172178986476482

[1,7,19,70,235,1578,9621,89416,823589,11073433,
 160764354,3227749885,73045396627,2178986476482]