cp's OEIS Frontend

A059745 Palindromic squares of sporadic type.

%I A059745 #19 Oct 03 2023 22:23:07
%S A059745 676,69696,94249,698896,5221225,6948496,522808225,617323716,942060249,
%T A059745 637832238736,1086078706801,1615108015161,4051154511504,5265533355625,
%U A059745 9420645460249,123862676268321,144678292876441,165551171155561,900075181570009,4099923883299904,94206450305460249
%N A059745 Palindromic squares of sporadic type.
%D A059745 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]
%D A059745 J. K. R. Barnett, "Tables of Square Palindromes in Bases 2 and 10," Journal of Recreational Mathematics, 23:1, pp. 13-18, 1991.
%D A059745 M. Keith, "Classification and Enumeration of Palindromic Squares," Journal of Recreational Mathematics, 22:2, pp. 124-132, 1990.
%D A059745 R. Ondrejka, "A Palindrome (151) of Palindromic Squares," Journal of Recreational Mathematics, 20:1, pp. 68-71, 1988.
%H A059745 Patrick De Geest, <a href="https://www.worldofnumbers.com/allsposqua.htm">Full List of the Sporadic Square Palindromes (SSP)</a>, part of Palindromic Squares website on WorldOfNumbers.
%H A059745 M. Keith, <a href="/A002778/a002778_1.pdf">Classification and enumeration of palindromic squares</a>, J. Rec. Math., 22 (No. 2, 1990), 124-132. [Annotated scanned copy] (Has many more terms)
%H A059745 William Rex Marshall, <a href="https://web.archive.org/web/20020614225321/http://www.geocities.com/williamrexmarshall/math/palsq.html">Table up to 10^40</a>
%F A059745 a(n) = A059744(n)^2. - _Hugo Pfoertner_, Oct 03 2023
%Y A059745 Cf. A059744, A016106, A028818, A060088.
%K A059745 nonn,base
%O A059745 1,1
%A A059745 _N. J. A. Sloane_, Feb 21 2001
%E A059745 More terms from WorldOfNumbers website, communicated by _Hugo Pfoertner_, Oct 03 2023