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A087451 as a simple table

na(n)
02
11
213
319
497
5211
6793
72059
86817
919171
1060073
11175099
12535537
131586131
144799353
1514316139
1643112257
17129009091
18387682633
191161737179
203487832977
2110458256051
2231385253913
2394134790219
24282446313697
25847255055011

[2,1,13,19,97,211,793,2059,6817,19171,60073,
 175099,535537,1586131,4799353,14316139,43112257,
 129009091,387682633,1161737179,3487832977,
 10458256051,31385253913,94134790219,282446313697,
 847255055011]