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A104181 as a simple table

na(n)
1666
27770
3435897
410295472
5854992152
637
7435897
810295472
9854992152
10435897
1110295472
1237
13435897
1410295472
15854992152
16435897
17854992152
1837
1910295472
20854992152
2137
2210295472
23854992152
24435897
2537
26435897
2710295472
28854992152
2937

[666,7770,435897,10295472,854992152,37,435897,
 10295472,854992152,435897,10295472,37,435897,
 10295472,854992152,435897,854992152,37,10295472,
 854992152,37,10295472,854992152,435897,37,435897,
 10295472,854992152,37]