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A059745 Palindromic squares of sporadic type. 5
676, 69696, 94249, 698896, 5221225, 6948496, 522808225, 617323716, 942060249, 637832238736, 1086078706801, 1615108015161, 4051154511504, 5265533355625, 9420645460249, 123862676268321, 144678292876441, 165551171155561, 900075181570009, 4099923883299904, 94206450305460249 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
REFERENCES
C. Ashbacher, More on palindromic squares, J. Rec. Math. 22, no. 2 (1990), 133-135. [A scan of the first page of this article is included with the last page of the Keith (1990) scan]
J. K. R. Barnett, "Tables of Square Palindromes in Bases 2 and 10," Journal of Recreational Mathematics, 23:1, pp. 13-18, 1991.
M. Keith, "Classification and Enumeration of Palindromic Squares," Journal of Recreational Mathematics, 22:2, pp. 124-132, 1990.
R. Ondrejka, "A Palindrome (151) of Palindromic Squares," Journal of Recreational Mathematics, 20:1, pp. 68-71, 1988.
LINKS
Patrick De Geest, Full List of the Sporadic Square Palindromes (SSP), part of Palindromic Squares website on WorldOfNumbers.
M. Keith, Classification and enumeration of palindromic squares, J. Rec. Math., 22 (No. 2, 1990), 124-132. [Annotated scanned copy] (Has many more terms)
William Rex Marshall, Table up to 10^40
FORMULA
a(n) = A059744(n)^2. - Hugo Pfoertner, Oct 03 2023
CROSSREFS
Sequence in context: A238252 A264338 A348319 * A028818 A203541 A014759
KEYWORD
nonn,base
AUTHOR
N. J. A. Sloane, Feb 21 2001
EXTENSIONS
More terms from WorldOfNumbers website, communicated by Hugo Pfoertner, Oct 03 2023
STATUS
approved

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Last modified May 22 21:38 EDT 2024. Contains 372758 sequences. (Running on oeis4.)