1. Lucky numberIn number theory, a lucky number is a natural number in a set which is generated by a "sieve" similar to the Sieve of Eratosthenes that generates the primes. Begin with a list of integers starting with 1: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, Every second number is eliminated, leaving only the odd integers: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, The second term in this sequence is 3.
Read “Lucky number” on English Wikipedia
Read “幸運数” on Japanese Wikipedia
Read “Lucky number” on DBpedia
Read “Lucky number” on English Wikipedia
Read “幸運数” on Japanese Wikipedia
Read “Lucky number” on DBpedia
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