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A029995 Squares which are palindromes in base 9. 11
0, 1, 4, 100, 400, 6724, 8281, 10000, 26896, 532900, 672400, 2131600, 43059844, 44129449, 45212176, 53290000, 54479161, 55681444, 172239376, 186104164, 186595600, 203946961, 2921402500, 3486902500, 3583219600 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,3
LINKS
P. De Geest, Palindromic Squares
MATHEMATICA
pal9Q[n_]:=Module[{idn9=IntegerDigits[n, 9]}, idn9==Reverse[idn9]]; Select[ Range[0, 60000]^2, pal9Q] (* Harvey P. Dale, Nov 12 2011 *)
CROSSREFS
Sequence in context: A326085 A158082 A017090 * A365608 A244352 A173987
KEYWORD
nonn,base
AUTHOR
STATUS
approved

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Last modified March 19 04:26 EDT 2024. Contains 370952 sequences. (Running on oeis4.)