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A074842 Triplets: base 10 representation is the juxtaposition of three identical strings. 2

%I #16 Sep 08 2022 08:45:07

%S 111,222,333,444,555,666,777,888,999,101010,111111,121212,131313,

%T 141414,151515,161616,171717,181818,191919,202020,212121,222222,

%U 232323,242424,252525,262626,272727,282828,292929,303030,313131,323232,333333

%N Triplets: base 10 representation is the juxtaposition of three identical strings.

%t Table[FromDigits[Flatten[IntegerDigits/@PadRight[{},3,n]]],{n,40}] (* _Harvey P. Dale_, Aug 10 2019 *)

%o (UBASIC)

%o 10 cls

%o 30 for I=1 to 100

%o 40 A=str(I)

%o 50 C=A+A+A

%o 60 B=val(cutspc(C))

%o 80 print B

%o 90 next

%o 100 end

%o (Magma) [Seqint(Intseq(n) cat Intseq(n) cat Intseq(n)): n in [1..46]]; // _Vincenzo Librandi_, Feb 21 2014

%Y Cf. A020338.

%K easy,nonn,base

%O 1,1

%A _Felice Russo_, Sep 10 2002

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Last modified April 25 08:27 EDT 2024. Contains 371964 sequences. (Running on oeis4.)