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A029997 Squares which are palindromes in base 11. 11
0, 1, 4, 9, 36, 144, 576, 676, 5184, 7056, 14884, 17689, 20736, 59536, 65025, 77841, 145924, 535824, 1774224, 2143296, 2547216, 5827396, 7096896, 7817616, 9375844, 20034576, 63872064, 214388164, 217946169, 221533456, 255488256, 259371025 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,3
LINKS
Vincenzo Librandi and Chai Wah Wu, Table of n, a(n) for n = 1..129 First 60 terms from Vincenzo Librandi.
P. De Geest, Palindromic Squares
MATHEMATICA
pb11Q[n_]:=Module[{idn11=IntegerDigits[n, 11]}, idn11==Reverse[idn11]]; Select[Range[0, 17000]^2, pb11Q] (* Harvey P. Dale, Jul 23 2014 *)
PROG
(Python)
from gmpy2 import digits
A029997_list = [n for n in (x**2 for x in range(10**7)) if digits(n, 11) == digits(n, 11)[::-1]]
# Chai Wah Wu, Dec 01 2014
CROSSREFS
Sequence in context: A262473 A001256 A227253 * A118548 A176830 A077211
KEYWORD
nonn,base
AUTHOR
STATUS
approved

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Last modified March 19 04:58 EDT 2024. Contains 370952 sequences. (Running on oeis4.)