|
%I #14 Dec 22 2016 11:06:54
%S 0,40,96,104,208,248,258,288,312,480,752,833,936,960,968,1170,1248,
%T 1728,1755,2090,2232,2400,2608,2768,2808,2832,2904,4224,4464,5208,
%U 5280,5418,6075,6584,6696,6714,6720,6768,6800,6966,7020,7182,7200,7714,7728,7776
%N Numbers n such that n and 2n are anagrams in more than one base.
%H Chai Wah Wu, <a href="/A279689/b279689.txt">Table of n, a(n) for n = 1..1001</a>
%e a(2) = 40 because 40 and 80 are anagrams in bases 5 and 11.
%e a(13) = 936 because 936 and 1872 are anagrams in bases 3, 9, and 53.
%o (PARI) isok(n) = (n==0) || sum(b=2, n, vecsort(digits(n,b)) == vecsort(digits(2*n,b))) > 1; \\ _Michel Marcus_, Dec 17 2016
%Y Cf. A279688.
%K nonn,base
%O 1,2
%A _Peter Kagey_, Dec 17 2016
|
