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A056962
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Base 16 reversal of n (written in base 10).
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3
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0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 1, 17, 33, 49, 65, 81, 97, 113, 129, 145, 161, 177, 193, 209, 225, 241, 2, 18, 34, 50, 66, 82, 98, 114, 130, 146, 162, 178, 194, 210, 226, 242, 3, 19, 35, 51, 67, 83, 99, 115, 131, 147, 163, 179, 195, 211, 227, 243, 4
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OFFSET
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0,3
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LINKS
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EXAMPLE
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a(17) = 17 because 17 in hexadecimal is 11, the same as its reverse.
a(18) = 33 because 18 in hexadecimal is 12, and hexadecimal 21 is 2 * 16 + 1 = 33.
a(19) = 49 because 19 in hexadecimal is 13, and hexadecimal 31 is 3 * 16 + 1 = 49.
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MATHEMATICA
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Table[FromDigits[Reverse[IntegerDigits[n, 16]], 16], {n, 0, 127}] (* Alonso del Arte, Sep 30 2018 *)
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PROG
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(PARI) a(n) = fromdigits(Vecrev(digits(n, 16)), 16); \\ Michel Marcus, Sep 30 2018
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CROSSREFS
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KEYWORD
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base,nonn,easy
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AUTHOR
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STATUS
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approved
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