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 A156974 #24 Nov 08 2023 14:27:30
%S A156974 31,37,61,157,541,8221,32797,131101,8388637,134217757,8589934621,
%T A156974 137438953501,8796093022237,9223372036854775837,590295810358705651741,
%U A156974 9444732965739290427421,604462909807314587353117,618970019642690137449562141,166153499473114484112975882535043101,170141183460469231731687303715884105757,883423532389192164791648750371459257913741948437809479060803100646309917
%N A156974 Primes of the form 2^k + 29.
%F A156974 a(n) = 2^A156982(n) + 29. - _Elmo R. Oliveira_, Nov 08 2023
%p A156974 a := proc (n) if isprime(2^n+29) = true then 2^n+29 else end if end proc: seq(a(n), n = 1 .. 110); # _Emeric Deutsch_, Mar 14 2009
%t A156974 Delete[Union[Table[If[PrimeQ[2^n + 29], 2^n + 29, 0], {n, 1, 500}]],1]
%o A156974 (Magma) [a: n in [0..300] | IsPrime(a) where a is 2^n+29 ]; // _Vincenzo Librandi_, Nov 27 2010
%Y A156974 Cf. A000040, A156982.
%Y A156974 Cf. A057733 (2^k+3), A123250 (2^k+5), A104066 (2^k+7), A156940 (2^k+11).
%K A156974 nonn
%O A156974 1,1
%A A156974 Edwin Dyke (ed.dyke(AT)btinternet.com), Feb 19 2009
%E A156974 More terms from _Emeric Deutsch_, Mar 14 2009
%E A156974 More terms from _Vincenzo Librandi_, Nov 27 2010