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A029997 Squares which are palindromes in base 11. 9
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

Cf. A002779, A029734, A029738, A029806, A029983, A029985, A029987, A029989, A029991, A029993, A029995, A029999, A030074, A030075.

Sequence in context: A262473 A001256 A227253 * A118548 A176830 A077211

Adjacent sequences:  A029994 A029995 A029996 * A029998 A029999 A030000

KEYWORD

nonn,base

AUTHOR

Patrick De Geest

STATUS

approved

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Last modified June 29 12:07 EDT 2017. Contains 288860 sequences.