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 A248010 #11 Jul 16 2015 22:40:29 %S A248010 1,4,6,8,9,10,12,15,18,20,21,22,24,25,26,27,28,30,33,36,39,40,42,44, %T A248010 45,46,48,49,50,51,52,54,55,56,57,58,60,62,63,64,65,66,68,69,70,72,75, %U A248010 77,78,80,81,82,84,85,86,87,88,90,93,94,96,99,100,102,105,108,111,114,116,117,120,122,123,126,129,132,135,138,141,144,147 %N A248010 Non-primatic permutable numbers: All permutations of the number's digits except the ones resulting in leading zeros are nonprimes. %C A248010 This sequence differs slightly from "absolute composite numbers". 30 is not an absolute composite since 03 is counted as a prime, but in this sequence permutations with leading zeros are disqualified as viable permutations. %H A248010 Andreas Boe, <a href="/A248010/b248010.txt">Table of n, a(n) for n = 1..10000</a> %e A248010 7000 qualifies since it is a composite and the only allowed permutation of its four digits. %Y A248010 Absolute composites: A067012, A067013. %Y A248010 Monoprimatic permutable numbers: A245808. %Y A248010 Biprimatic permutable numbers: A246043. %K A248010 nonn,base %O A248010 1,2 %A A248010 _Andreas Boe_, Sep 29 2014