OFFSET
1,1
COMMENTS
Palindromes h such that 4*h - 23 is a square. - Bruno Berselli, Aug 29 2018
LINKS
Giovanni Resta, Table of n, a(n) for n = 1..34
P. De Geest, Palindromic Quasi_Over_Squares of the form n^2+(n+X)
FORMULA
MATHEMATICA
palQ[n_] := Block[{d = IntegerDigits[n]}, d == Reverse[d]]; f[n_] := n^2 + n + 6; Select[f@ Range[0, 10^5], palQ] (* Giovanni Resta, Aug 29 2018 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
EXTENSIONS
More terms from Giovanni Resta, Aug 27 2018
STATUS
approved