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A143145 A positive integer n is included if there are no primes p where j < p < k, where j is the largest divisor of n that is <= sqrt(n) and k = the smallest divisor of n that is >= sqrt(n). +0
3
1, 2, 4, 6, 9, 12, 15, 16, 20, 25, 30, 35, 36, 42, 49, 56, 63, 64, 70, 72, 77, 80, 81, 88, 90, 99, 100, 110, 121, 132, 143, 144, 156, 169, 182, 195, 196, 208, 210, 221, 224, 225, 238, 240, 255, 256, 272, 289, 306, 323, 324, 342, 361, 380, 399, 400, 418, 420, 437, 440 (list; graph; listen)
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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.


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