login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A074842 Triplets: base 10 representation is the juxtaposition of three identical strings. 2
111, 222, 333, 444, 555, 666, 777, 888, 999, 101010, 111111, 121212, 131313, 141414, 151515, 161616, 171717, 181818, 191919, 202020, 212121, 222222, 232323, 242424, 252525, 262626, 272727, 282828, 292929, 303030, 313131, 323232, 333333 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..33.

MATHEMATICA

Table[FromDigits[Flatten[IntegerDigits/@PadRight[{}, 3, n]]], {n, 40}] (* Harvey P. Dale, Aug 10 2019 *)

PROG

(UBASIC)

10 cls

30 for I=1 to 100

40 A=str(I)

50 C=A+A+A

60 B=val(cutspc(C))

80 print B

90 next

100 end

(MAGMA) [Seqint(Intseq(n) cat Intseq(n) cat Intseq(n)): n in [1..46]]; // Vincenzo Librandi, Feb 21 2014

CROSSREFS

Cf. A020338.

Sequence in context: A333568 A123673 A177769 * A180115 A082941 A029486

Adjacent sequences:  A074839 A074840 A074841 * A074843 A074844 A074845

KEYWORD

easy,nonn,base

AUTHOR

Felice Russo, Sep 10 2002

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 20 09:24 EDT 2021. Contains 348100 sequences. (Running on oeis4.)