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A070254 Perfect squares one more than a palindrome. 5
1, 4, 9, 100, 324, 576, 4225, 5776, 10000, 36864, 42025, 1000000, 3055504, 3640464, 5597956, 8803089, 32855824, 100000000, 360696064, 422919225, 10000000000, 30485858404, 30536863504, 32154945124, 59080108096, 86310801369, 304816618404, 1000000000000, 3490500050944 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
All even powers of 10 are members of both A070254 and A027720.
LINKS
FORMULA
a(n) = A070253(n)^2 = A028504(n) + 1. - Giovanni Resta, Aug 29 2018
MATHEMATICA
Do[ If[a = IntegerDigits[n^2 - 1]; a == Reverse[a], Print[n^2]], {n, 1, 10^6}]
Select[Range[300000]^2, PalindromeQ[#-1]&] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Aug 06 2018 *)
CROSSREFS
Sequence in context: A061459 A061869 A061270 * A061090 A061272 A117680
KEYWORD
nonn,base
AUTHOR
Amarnath Murthy, May 06 2002
EXTENSIONS
Edited by Jason Earls and Robert G. Wilson v, May 08 2002
Offset changed by and more terms from Giovanni Resta, Aug 28 2018
STATUS
approved

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Last modified March 28 05:39 EDT 2024. Contains 371235 sequences. (Running on oeis4.)