A043018 - OEIS

A043018

Base-7 palindromes that start with 4.

4, 32, 200, 207, 214, 221, 228, 235, 242, 1376, 1432, 1488, 1544, 1600, 1656, 1712, 9608, 9657, 9706, 9755, 9804, 9853, 9902, 9958, 10007, 10056, 10105, 10154, 10203, 10252, 10308, 10357, 10406, 10455, 10504, 10553, 10602

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Harvey P. Dale, Table of n, a(n) for n = 1..10000

MATHEMATICA

Join[{4}, FromDigits[#, 7]&/@Select[Flatten[Table[Join[{4}, #, {4}]&/@ Tuples[ Range[ 0, 6], n], {n, 0, 3}], 1], #==Reverse[#]&]] (* Harvey P. Dale, Sep 13 2020 *)

CROSSREFS

Sequence in context: A018215 A099133 A208710 * A270015 A271161 A002012

Adjacent sequences: A043015 A043016 A043017 * A043019 A043020 A043021

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved