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 Home > Numbers > Sequences These problems deal with sequences of numbers. Can you spot what the sequences' rules are?
Latest: Two cases
Could one find a sequence of 14 consecutive positive integers such that:

(I) each of the members of such sequence will be divisible by a prime below 13?
(II) Same question for 21 members, each being divisible by a prime below 17?

Provide two independent answers for (I) and (II)

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Integers only |
Ordinary Numbers | Rating: 5.00
Posted on 2023-06-09 by Charlie (Solution Posted, 4 Comments)
OEIS in the NYT | Rating: 5.00
Posted on 2023-05-28 by Charlie (Solution Posted, 5 Comments)
Twelve |
Nice infinite series |
Factorials galore | Rating: 5.00
Repunit Crossed Fifth Power Decision | Rating: 5.00
Posted on 2023-03-23 by K Sengupta (Solution Posted, 1 Comments)
Find the algorithm |
Triplet Trouble |
Posted on 2023-02-23 by Larry (No Solution Yet, 2 Comments)
Fibonacci but with Subtraction still stays Positive | Rating: 4.00
Posted on 2023-02-15 by Brian Smith (Solution Posted, 3 Comments)
Semiprimes in Arithmetic Sequence | Rating: 5.00
Posted on 2022-11-20 by K Sengupta (Solution Posted, 11 Comments)
Bits adjacent to 1 | Rating: 5.00
Posted on 2022-11-15 by Brian Smith (Solution Posted, 5 Comments)
123…9 door to door | Rating: 5.00
Mystery sequence | Rating: 5.00
Posted on 2022-10-13 by Math Man (No Solution Yet, 8 Comments)

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