[seqfan] "(n - k)/k - k is not"

юрий герасимов 2stepan at rambler.ru
Tue Nov 3 13:33:39 CET 2015


Dear SeqFans.

 I'm not allowed to offer more than three sequences, white otheres they often refer to the sequences "of general interest". For example: Nunber of primes of the form (n - k)/k - k: 0, 0, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 1, 2, 0, 0, 0, 1, 1, 1, 2, 0, 0, 1, 2, 2, 0, 0, 0, 0, 0, 1, 3, 0, 0, 1, 1, 3, 0, 0, 1, 1, 0, 1, 1, 0, 1, 2, 0, 0, 0, 0, 1, 1, 0, 2, 2, 1, 0, 0, 1, 2, 1, 0, 2, 1, 0, 1, 1, 1, 0, 0, 0, 2, 0, 0, 2, 2, 0, 0, 3, 0, 0, ..? or. numbers m where (m - k)/k - k is not squarefree for any squarefree k: 1, 2, 6, 14, 22, 29, 38, 46, 47, 56, 62, 74, 81, 83, 86, ..? 

Best regards. JSG


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