cp's OEIS Frontend

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.

A116024 The n-th prime minus n gives a semiprime (A001358).

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%I A116024 #4 Jun 05 2015 11:09:56
%S A116024 5,7,9,12,20,22,24,36,40,49,52,55,58,59,60,64,69,72,74,78,80,82,87,93,
%T A116024 96,101,105,106,108,112,114,117,118,122,123,124,125,128,132,134,135,
%U A116024 136,138,140,142,147,150,156,158,159,160,162,164,166,170,172,180,184
%N A116024 The n-th prime minus n gives a semiprime (A001358).
%H A116024 Harvey P. Dale, <a href="/A116024/b116024.txt">Table of n, a(n) for n = 1..1000</a>
%e A116024 p(40)-40=133=7*19.
%t A116024 Transpose[Select[Table[{Prime[n],n},{n,200}],PrimeOmega[#[[1]]-#[[2]]] == 2&]][[2]] (* _Harvey P. Dale_, Jun 05 2015 *)
%Y A116024 Cf. A001358, A116013, A116023.
%K A116024 nonn
%O A116024 1,1
%A A116024 _Giovanni Resta_, Feb 13 2006