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A231465 as a simple table

na(n)
14
28
338
490
5363
61163
74151
816054
957977
10238042
11932432
123836583
1315995213
1466369986
15282812398
161194269858
175105324531
1821834952869
1993482382103
20401775486130
211724671120242
227419913219654
2331917553521617
24137355079265693

[4,8,38,90,363,1163,4151,16054,57977,238042,
 932432,3836583,15995213,66369986,282812398,
 1194269858,5105324531,21834952869,93482382103,
 401775486130,1724671120242,7419913219654,
 31917553521617,137355079265693]