OFFSET
1,3
LINKS
Robert Price, Table of n, a(n) for n = 1..23
P. De Geest, Palindromic Octagonals
MATHEMATICA
Select[PolygonalNumber[8, Range[0, 10^5]], PalindromeQ] (* Robert Price, Apr 29 2019 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Patrick De Geest, Aug 15 2000
EXTENSIONS
a(1)=0 added by Robert Price, Apr 29 2019
STATUS
approved