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A057418 as a simple table

na(n)
71
86
937
10195
11975
124622
1321128
1494109
15410820
161766591
177506179
1831596240
19131991619
20547992183
212263477612
229309386178
2338150082057
24155859235424
25635067478628
262581737704039

[1,6,37,195,975,4622,21128,94109,410820,1766591,
 7506179,31596240,131991619,547992183,2263477612,
 9309386178,38150082057,155859235424,635067478628,
 2581737704039]