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A143243 a(n) = the smallest multiple of the n-th prime such that (a(n)+1) is divisible by both the (n-1)th prime and the (n+1)st prime. 1

%I #6 Apr 09 2014 10:15:54

%S 9,20,329,363,1495,493,2736,12121,8555,19313,25419,7954,30831,102554,

%T 69324,174581,19764,229542,303241,33653,139356,267177,611875,26966,

%U 629432,972629,449079,822187,27685,503301,1043939,1037912,2694515

%N a(n) = the smallest multiple of the n-th prime such that (a(n)+1) is divisible by both the (n-1)th prime and the (n+1)st prime.

%Y Cf. A143244.

%K nonn

%O 2,1

%A _Leroy Quet_, Aug 01 2008

%E Extended by _Ray Chandler_, Aug 08 2008

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Last modified March 29 11:14 EDT 2024. Contains 371278 sequences. (Running on oeis4.)