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Number of solutions to rev(x^2) = rev(x)^2 with n digits, where the rev(x) function reverses the digits of x.
3

%I #9 May 09 2013 19:06:07

%S 3,6,15,39,90,209,457,991,2062,4288,8521,17075,33108,64073,121045,

%T 228811,423188,781582,1420445,2571855,4599072,8187723,14426529,

%U 25278777,43966808,75959592,130496955,222598065,378036562,637128539,1071282807

%N Number of solutions to rev(x^2) = rev(x)^2 with n digits, where the rev(x) function reverses the digits of x.

%C Excludes multiples of 10.

%Y Cf. A085305.

%K nonn,base

%O 1,1

%A _Martin Renner_, Oct 27 2004

%E a(7)-a(31) from _David Radcliffe_, May 05 2013