cp's OEIS Frontend

A377413 a(n) is the least term of A126684 of the form k*n with k > 0.

%I A377413 #7 Oct 28 2024 16:24:47
%S A377413 0,1,2,21,4,5,42,21,8,81,10,341,84,65,42,1365,16,17,162,1045,20,21,
%T A377413 682,69,168,325,130,81,84,261,2730,341,32,1089,34,1365,324,4181,2090,
%U A377413 273,40,1025,42,5461,1364,5445,138,20821,336,1029,650,4437,260,5141,162
%N A377413 a(n) is the least term of A126684 of the form k*n with k > 0.
%H A377413 Rémy Sigrist, <a href="/A377413/b377413.txt">Table of n, a(n) for n = 0..10000</a>
%H A377413 Rémy Sigrist, <a href="/A377413/a377413.txt">C++ program</a>
%F A377413 a(n) = A377412(n)*n.
%F A377413 a(n) >= A300889(n) for any n > 0.
%F A377413 a(n) = n iff n belongs to A126684.
%e A377413 The first terms, in decimal and in binary, are:
%e A377413   n   a(n)  bin(a(n))
%e A377413   --  ----  ---------
%e A377413    0     0          0
%e A377413    1     1          1
%e A377413    2     2         10
%e A377413    3    21      10101
%e A377413    4     4        100
%e A377413    5     5        101
%e A377413    6    42     101010
%e A377413    7    21      10101
%e A377413    8     8       1000
%e A377413    9    81    1010001
%e A377413   10    10       1010
%e A377413   11   341  101010101
%e A377413   12    84    1010100
%o A377413 (C++) // See Links section.
%Y A377413 See A300889 for a similar sequence.
%Y A377413 Cf. A126684, A377412.
%K A377413 nonn,base,easy
%O A377413 0,3
%A A377413 _Rémy Sigrist_, Oct 27 2024