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A268779 as a simple table

na(n)
141
2343
33354
427531
5224960
61755113
713493468
8101738555
9758303322
105590121407
1140870469356
12296640792103
132140108184248
1415358691305417
15109723986174308
16780748875032869
175535897115345958
1839128843941494495

[41,343,3354,27531,224960,1755113,13493468,
 101738555,758303322,5590121407,40870469356,
 296640792103,2140108184248,15358691305417,
 109723986174308,780748875032869,5535897115345958,
 39128843941494495]