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 A045799 In the list of divisors of n (in binary), each digit 0-1 appears equally often. 2
 100, 10001, 10100, 11000, 100100, 1000011, 1001001, 1001010, 1001100, 1010010, 1011000, 1100001, 1100100, 1101000, 1110000, 10101010, 11001100, 11011000, 11110000, 100000111, 100001101, 100010101, 100010110, 100011001, 100011100 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS The corresponding decimal values of the terms are 4, 17, 20, 24, 36, 67, 73, 74, 76, 82, 88, 97, 100, 104, 112, 170, 204, 216, 240, 263, 269, 277, 278, 281, 284, ... - Amiram Eldar, Sep 08 2019 LINKS Amiram Eldar, Table of n, a(n) for n = 1..10000 N. Nomoto, In the list of divisors of n,... [Dead link] EXAMPLE E.g. divisors of 10100 are (1, 10, 100, 101, 1010, 10100); the numbers of digits (0-1) are [ 0(9),1(9) ]. MATHEMATICA fQ[v_] := Length[v] == 2 && v[[1]] == v[[2]]; aQ[n_] := fQ[(Tally @ Flatten @ Join @ IntegerDigits[Divisors[n], 2])[[;; , 2]]]; FromDigits /@ IntegerDigits[Select[ Range[284], aQ], 2] (* Amiram Eldar, Sep 08 2019 *) CROSSREFS Cf. A038564, A038565, A045810. Sequence in context: A029794 A029801 A098608 * A096885 A267449 A266752 Adjacent sequences:  A045796 A045797 A045798 * A045800 A045801 A045802 KEYWORD easy,nonn,base AUTHOR STATUS approved

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Last modified February 19 19:18 EST 2020. Contains 332047 sequences. (Running on oeis4.)