This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A222137 #9 Feb 11 2013 17:10:24 %S A222137 7,79,130783,523927,9007199254738183,9671406556917033397642519, %T A222137 215679573337205118357336120696157045389097155380324579848828881942199 %N A222137 Primes of the form 2^p - p^2, where p is prime. %C A222137 Subsequence of A075896 (primes of the form 2^n - n^2). %C A222137 Primes of the form 2^p - p^2 (p = prime) for p = 5, 7, 17, 19, 53, 83, 227, 461, 2221,... (all p <= 2455). %C A222137 a(8) = 59542628... has 139 digits. %C A222137 a(9) = 2^2221 - 2221^2 has 669 digits. %e A222137 130783 is in the sequence because it is prime and it is of the form 2^p - p^2 where p=17 is prime. %t A222137 lst={}; Do[p=Prime[n]; If[PrimeQ[p=2^p-p^2], AppendTo[lst, p]], {n, 100}]; lst %Y A222137 Cf. A075896. %K A222137 nonn %O A222137 1,1 %A A222137 _Jaroslav Krizek_, Feb 08 2013