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A098701
Number of solutions to rev(x^2) = rev(x)^2 with n digits, where the rev(x) function reverses the digits of x.
3
3, 6, 15, 39, 90, 209, 457, 991, 2062, 4288, 8521, 17075, 33108, 64073, 121045, 228811, 423188, 781582, 1420445, 2571855, 4599072, 8187723, 14426529, 25278777, 43966808, 75959592, 130496955, 222598065, 378036562, 637128539, 1071282807
OFFSET
1,1
COMMENTS
Excludes multiples of 10.
CROSSREFS
Cf. A085305.
Sequence in context: A087124 A327647 A086326 * A218777 A152799 A140824
KEYWORD
nonn,base
AUTHOR
Martin Renner, Oct 27 2004
EXTENSIONS
a(7)-a(31) from David Radcliffe, May 05 2013
STATUS
approved