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A107818 Slowest increasing sequence where (product of 2 consecutive integers)-1 is prime. 0

%I #4 Mar 31 2012 13:46:52

%S 2,3,4,5,6,7,12,14,16,17,22

%N Slowest increasing sequence where (product of 2 consecutive integers)-1 is prime.

%C Essentially the same as A070916. [From _R. J. Mathar_, Aug 24 2008]

%e (2*3)-1=5, which is prime; (3*4)-1=11=prime; (4*5)-1=19=prime; (5*6)-1=29=prime, etc.

%K base,easy,nonn

%O 0,1

%A _Eric Angelini_, Jun 11 2005

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Last modified April 23 02:10 EDT 2024. Contains 371906 sequences. (Running on oeis4.)