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.

A163629 Numbers such that the two adjacent integers are a prime and 5 times a prime.

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%I A163629 #5 Jun 05 2012 11:51:13
%S A163629 14,16,24,36,54,66,84,96,114,156,234,264,294,306,336,354,366,396,444,
%T A163629 486,504,546,564,654,684,744,756,786,864,906,954,966,984,996,1116,
%U A163629 1164,1194,1284,1554,1566,1584,1656,1734,1746,1866,1914,1986,2004,2154,2214
%N A163629 Numbers such that the two adjacent integers are a prime and 5 times a prime.
%H A163629 Harvey P. Dale, <a href="/A163629/b163629.txt">Table of n, a(n) for n = 1..1000</a>
%e A163629 a(1)=14 which lies between 13=A000040(6) and 15=A001750(2).
%e A163629 a(2)=16 which lies between 15=A001750(2) and 17=A000040(7).
%t A163629 prQ[n_]:=Module[{a=n-1,b=n+1},(PrimeQ[a]&&PrimeQ[b/5])||(PrimeQ[b] && PrimeQ[a/5])]; Select[Range[3000],prQ] (* _Harvey P. Dale_, Jun 05 2012 *)
%Y A163629 Cf. A000040, A163492.
%K A163629 nonn
%O A163629 1,1
%A A163629 _Juri-Stepan Gerasimov_, Aug 02 2009
%E A163629 114, 444 added, 1303 removed, 1666 replaced by 1656 - _R. J. Mathar_, Aug 07 2009