A243887 (p^2 - 3)/2 for odd primes p.
3, 11, 23, 59, 83, 143, 179, 263, 419, 479, 683, 839, 923, 1103, 1403, 1739, 1859, 2243, 2519, 2663, 3119, 3443, 3959, 4703, 5099, 5303, 5723, 5939, 6383, 8063, 8579, 9383, 9659, 11099, 11399, 12323, 13283, 13943, 14963, 16019, 16379, 18239, 18623, 19403, 19799
Offset: 1
Links
- Vincenzo Librandi, Table of n, a(n) for n = 1..1000
Programs
-
Magma
[(p^2-3)/2: p in PrimesInInterval(3, 300)];
-
Mathematica
Table[(Prime[n]^2 - 3)/2, {n, 2, 100}]
Formula
a(n) = A216244(n) - 1. [Robert Israel, Jun 15 2014]