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 A188649 Least common multiple of reversals of divisors of n in decimal representation. 6

%I

%S 1,2,3,4,5,6,7,8,9,10,11,84,31,574,255,488,71,162,91,20,84,22,32,168,

%T 260,62,72,1148,92,510,13,11224,33,6106,1855,2268,73,15106,93,40,14,

%U 6888,34,44,4590,64,74,10248,658,260,1065,3100,35,3240,55,149240,6825,7820,95,7140,16,26,252,11224,8680,66,76,12212,96,152110,17,4536,37,6862,251940,2024204,77

%N Least common multiple of reversals of divisors of n in decimal representation.

%C a(A000040(n)) = A004087(n);

%C a(A002385(n)) = A002385(n), see A188650 for all fixed points: a(A188650(n)) = A188650(n).

%H <a href="/index/Lc#lcm">Index entries for sequences related to lcm's</a>

%H _Reinhard Zumkeller_, <a href="/A188649/b188649.txt">Table of n, a(n) for n = 1..10000</a>

%e Divisors(42)={1,2,3,6,7,14,21,42}, therefore a(42)=LCM(1,2,3,6,7,41,12,24)=6888.

%o a188649 n = foldl lcm 1 \$ map a004086 \$ filter ((== 0) . mod n) [1..n]

%Y Cf. A003990 (LCM), A027750 (divisors), A004086 (reversal).

%K nonn,base

%O 1,2

%A _Reinhard Zumkeller_, Apr 11 2011

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