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%I #10 Oct 12 2016 16:11:38
%S 1,10,100,1000,10000,100000,1111111,11111110,111111100,1111111000,
%T 11111110000,111111100000
%N Divisors of 4064 (the 4th perfect number divided by 2), written in base 2.
%C a(n) has n digits. See A138814 for more information.
%H <a href="/index/Di#divisors">Index entries for sequences related to divisors of numbers</a>
%e The structure of divisors of 4064 (see A138814)
%e .................................................................
%e n ........... Divisor . Formula ....... Divisor written in base 2
%e .................................................................
%e 1) ................ 1 = 2^0 ........... 1
%e 2) ................ 2 = 2^1 ........... 10
%e 3) ................ 4 = 2^2 ........... 100
%e 4) ................ 8 = 2^3 ........... 1000
%e 5) ............... 16 = 2^4 ........... 10000
%e 6) A134708(4) = .. 32 = 2^5 ........... 100000
%e 7) A000668(4) = . 127 = 2^7 - 2^0 ..... 1111111
%e 8) .............. 254 = 2^8 - 2^1 ..... 11111110
%e 9) .............. 508 = 2^9 - 2^2 ..... 111111100
%e 10) ............ 1016 = 2^10- 2^3 ..... 1111111000
%e 11) ............ 2032 = 2^11- 2^4 ..... 11111110000
%e 12) A133028(4) = 4064 = 2^12- 2^5 ..... 111111100000
%t FromDigits/@(IntegerDigits[#,2]&/@Divisors[4064]) (* _Harvey P. Dale_, Oct 12 2016 *)
%Y Perfect number divided by 2: A133028. Cf. A000043, A000396, A000668, A090748, A134708, A135654, A138814.
%K easy,fini,full,nonn,less
%O 1,2
%A _Omar E. Pol_, Mar 31 2008
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