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A048770 as a simple table

na(n)
01
18
223
360
4149
5364
6883
72136
85161
912464
1030095
1172660
12175421
13423508
141022443
152468400
165959249
1714386904
1834733063
1983853036
20202439141
21488731324
221179901795
232848534920
246876971641
2516602478208
2640081928063

[1,8,23,60,149,364,883,2136,5161,12464,30095,
 72660,175421,423508,1022443,2468400,5959249,
 14386904,34733063,83853036,202439141,488731324,
 1179901795,2848534920,6876971641,16602478208,
 40081928063]