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A201464
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A list of 63 distinct numbers such that the sum of their reciprocals is 1 and each number is of the form p*q where p and q are distinct primes.
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3
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6, 10, 14, 15, 21, 22, 26, 33, 34, 35, 38, 39, 46, 51, 55, 57, 58, 62, 65, 69, 82, 91, 93, 95, 106, 118, 119, 122, 123, 133, 145, 155, 159, 161, 183, 187, 202, 213, 265, 287, 295, 299, 319, 355, 393, 413, 453, 497, 505, 583, 671, 835, 917, 1057, 1169, 1313, 1438, 1441, 1837, 1963, 3595, 5033, 7909
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listen;
history;
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OFFSET
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1,1
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COMMENTS
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At the time Burshtein's paper appeared, this was the smallest example known of this type. See A201514 for an even smaller example.
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REFERENCES
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E. J. Barbeau, Expressing one as a sum of distinct reciprocals: comments and a bibliography, Eureka (Ottawa), 3 (1977), 178-181.
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LINKS
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CROSSREFS
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KEYWORD
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nonn,fini,full
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AUTHOR
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STATUS
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approved
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