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A325402 maxflip(n) = max(n, r(n)) where r(n) is the binary reverse of n. 2
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 13, 12, 13, 14, 15, 16, 17, 18, 25, 20, 21, 22, 29, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 49, 36, 41, 38, 57, 40, 41, 42, 53, 44, 45, 46, 61, 48, 49, 50, 51, 52, 53, 54, 59, 56, 57, 58, 59, 60, 61, 62, 63 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Alois P. Heinz, Table of n, a(n) for n = 0..16384 (first 257 terms from Francois Alcover)

FORMULA

a(n) = max(n,A030101(n)).

EXAMPLE

a(10) = max(10, r(10))

      = max(10, b'0101')

      = max(10, 5)

      = 10.

a(11) = max(11, r(11))

      = max(11, b'1101')

      = max(11, 13)

      = 13.

MAPLE

a:= proc(n) local m, r; m:=n; r:=0;

      while m>0 do r:=r*2+irem(m, 2, 'm') od;

      max(n, r)

    end:

seq(a(n), n=0..127);  # Alois P. Heinz, Apr 23 2019

PROG

(PARI) a(n) = max(n, fromdigits(Vecrev(binary(n)), 2)); \\ Michel Marcus, Apr 24 2019

CROSSREFS

Cf. A030101, A325401.

Cf. A068637 (analog in base 10).

Sequence in context: A322464 A057889 A235027 * A110029 A302027 A302028

Adjacent sequences:  A325399 A325400 A325401 * A325403 A325404 A325405

KEYWORD

nonn,look,base

AUTHOR

Francois Alcover, Apr 23 2019

STATUS

approved

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Last modified November 18 22:26 EST 2019. Contains 329306 sequences. (Running on oeis4.)