login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A034133 Decimal part of cube root of a(n) starts with 7: first term of runs. 1
5, 20, 51, 104, 186, 301, 457, 659, 913, 1226, 1602, 2049, 2572, 3177, 3870, 4658, 5546, 6540, 7646, 8870, 10219, 11698, 13313, 15070, 16975, 19035, 21254, 23640, 26199, 28935, 31856, 34966, 38273, 41782, 45500, 49431, 53583, 57961, 62571 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..39.

MATHEMATICA

Join[{5}, (If[#[[2]]-#[[1]]==1, Nothing, #]&/@Partition[Select[Range[ 63000], NumberDigit[ Surd[#, 3], -1]==7&], 2, 1])[[All, 2]]] (* Requires Mathematica version 12 or later *) (* Harvey P. Dale, Jul 17 2021 *)

CROSSREFS

Cf. A034123.

Sequence in context: A190094 A134481 A062158 * A006504 A007045 A102227

Adjacent sequences:  A034130 A034131 A034132 * A034134 A034135 A034136

KEYWORD

nonn,base

AUTHOR

Patrick De Geest, Sep 15 1998

STATUS

approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 20 23:05 EDT 2022. Contains 353886 sequences. (Running on oeis4.)