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A080719 Replace decimal digits by their binary values and convert to decimal representation. 1
1, 2, 3, 4, 5, 6, 7, 8, 9, 2, 3, 6, 7, 12, 13, 14, 15, 24, 25, 4, 5, 10, 11, 20, 21, 22, 23, 40, 41, 6, 7, 14, 15, 28, 29, 30, 31, 56, 57, 8, 9, 18, 19, 36, 37, 38, 39, 72, 73, 10, 11, 22, 23, 44, 45, 46, 47, 88, 89, 12, 13, 26, 27, 52, 53, 54, 55, 104, 105, 14, 15, 30, 31, 60, 61, 62 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

m is a local maximum iff m == 9 modulo 10 (see A017377).

LINKS

R. Zumkeller, Table of n, a(n) for n = 1..10000

EXAMPLE

n=27 -> '2''7' -> '10''111' -> '10111' -> 23: a(27)=23.

MATHEMATICA

Table[FromDigits[Flatten[IntegerDigits[#, 2]&/@IntegerDigits[n]], 2], {n, 80}] (* Harvey P. Dale, Aug 30 2014 *)

CROSSREFS

Cf. A007088.

Sequence in context: A038506 A091047 A068505 * A049105 A125959 A043269

Adjacent sequences:  A080716 A080717 A080718 * A080720 A080721 A080722

KEYWORD

nonn,base

AUTHOR

Reinhard Zumkeller, Mar 06 2003

STATUS

approved

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Last modified December 20 03:36 EST 2014. Contains 252241 sequences.