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Permutation of A025487 (least prime signatures) which, when values are factored, exhibit self-similarity (cf. A008687).
7

%I #2 Mar 31 2012 13:23:37

%S 1,2,4,6,8,12,36,30,16,24,72,60,216,180,900,210,32,48,144,120,432,360,

%T 1800,420,1296,1080,5400,1260,27000,6300,44100,2310,64,96,288,240,864,

%U 720,3600,840,2592,2160,10800,2520,54000,12600,88200,4620,7776,6480

%N Permutation of A025487 (least prime signatures) which, when values are factored, exhibit self-similarity (cf. A008687).

%e Factored sequences are

%e 1

%e 0 2 0 3 0 3 0 5 0 3 0 5 0 5 0 7 ...

%e 0 0 4 2 0 0 9 3 0 0 9 3 0 0 25 5 ...

%e 0 0 0 0 8 4 4 2 0 0 0 0 27 9 9 3 ...

%e 0 0 0 0 0 0 0 0 16 8 8 4 8 4 4 2 ...

%e yielding

%e 1 2 4 6 8 12 36 30 16 24 72 60 216 180 900 210 ...

%Y Cf. A008687, A080801.

%K nonn

%O 1,2

%A _Alford Arnold_, Aug 24 2003