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 A078548 a(n) = lcm(n, A052429(n)) - A052429(n). 2

%I

%S 0,0,0,0,0,0,0,0,0,9,10,10,36,24,10,42,112,64,162,18,40,20,132,20,40,

%T 72,364,48,504,27,90,90,30,192,90,30,756,432,108,36,160,80,504,40,160,

%U 264,1288,40,1728,45,250,250,780,520,50,810,1960,1120,2610,54,360,180

%N a(n) = lcm(n, A052429(n)) - A052429(n).

%t lc[x_] := Apply[LCM, DeleteCases[IntegerDigits[x], 0]] Table[LCM[lc[w], w]-lc[w], {w, 1, 128}]

%o (PARI) lcnzd(n) = lcm(select(x->(x!=0), digits(n)));

%o a(n) = my(lc=lcnzd(n)); lcm(n, lc) - lc; \\ _Michel Marcus_, Mar 18 2018

%Y Cf. A052429, A078546, A078547, A002796.

%K nonn,base

%O 1,10

%A _Labos Elemer_, Dec 05 2002

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Last modified December 9 06:07 EST 2021. Contains 349627 sequences. (Running on oeis4.)