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A266359 as a simple table

na(n)
16
234
3173
4830
53669
614921
755734
8191916
9612871
101827072
115118950
1213561326
1334161206
1482219937
15189887848
16422385924
17907900116
181891159167
193827190045
207541618443
2114499264935
2227245395504
2350118187760
2490379795961
25159985071253

[6,34,173,830,3669,14921,55734,191916,612871,
 1827072,5118950,13561326,34161206,82219937,
 189887848,422385924,907900116,1891159167,
 3827190045,7541618443,14499264935,27245395504,
 50118187760,90379795961,159985071253]