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A243887 (p^2 - 3)/2 for odd primes p. 2

%I #14 Sep 08 2022 08:46:08

%S 3,11,23,59,83,143,179,263,419,479,683,839,923,1103,1403,1739,1859,

%T 2243,2519,2663,3119,3443,3959,4703,5099,5303,5723,5939,6383,8063,

%U 8579,9383,9659,11099,11399,12323,13283,13943,14963,16019,16379,18239,18623,19403,19799

%N (p^2 - 3)/2 for odd primes p.

%H Vincenzo Librandi, <a href="/A243887/b243887.txt">Table of n, a(n) for n = 1..1000</a>

%F a(n) = A216244(n) - 1. [_Robert Israel_, Jun 15 2014]

%t Table[(Prime[n]^2 - 3)/2, {n, 2, 100}]

%o (Magma) [(p^2-3)/2: p in PrimesInInterval(3, 300)];

%Y Cf. A065091, A165635, A216244.

%K nonn,easy

%O 1,1

%A _Vincenzo Librandi_, Jun 15 2014

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Last modified March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)