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I have always been curious about the distance between prime numbers. I call the sequence above the frog numbers because I don't know what else to call them. They are generated from the first n odd primes. How many consecutive integers are divisible by at least one of the set. Then add 1. For example, only one consecutive number is divisible by 3. Add 1 and you get 2. Only 2 consecutive numbers can be divisible by 3 or 5. Add 1 and you get 3. Etc. I don't have the mathematical horsepower to analyze the sequence and I am wondering if someone can give me more information on it? Is there efficient algorithm for generating lots of these numbers? I did write a program to generate the frog numbers in the title above. It is interesting how closely they track the primes.