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A225301
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Number of solutions to rev(x^2) = rev(x)^2 with at most n digits, where the function rev(x) reverses the digits of x.
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2
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4, 10, 25, 64, 154, 363, 820, 1811, 3873, 8161, 16682, 33757, 66865, 130938, 251983, 480794, 903982, 1685564, 3106009, 5677864, 10276936, 18464659, 32891188, 58169965, 102136773, 178096365, 308593320, 531191385, 909227947, 1546356486, 2617639293
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OFFSET
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1,1
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COMMENTS
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Numbers (other than 0) that end in zero are excluded.
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LINKS
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FORMULA
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Equals one more than the partial sums of A098701.
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EXAMPLE
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For n = 2 the a(2) = 10 solutions are 0, 1, 2, 3, 11, 12, 13, 21, 22, 31.
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CROSSREFS
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KEYWORD
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nonn,base
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AUTHOR
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STATUS
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approved
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