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Search: id:A089331
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| A089331 |
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a(1) = 1; for n>1, a(n) = smallest power of 2 not included earlier such that the (n>1)concatenation a(n), a(n-1), ...a(2), a(1) is a prime. |
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| 1, 4, 2, 4096, 8, 16, 524288, 18446744073709551616, 3064991081731777716716694054300618367237478244367204352, 268435456, 14474011154664524427946373126085988481658748083205070504932198000989141204992
(list; graph; listen)
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