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A090050 Numbers having equal length of longest contiguous block of 0's and 1's in binary expansion. 6
2, 5, 10, 12, 19, 21, 25, 38, 42, 44, 50, 51, 52, 56, 71, 75, 76, 77, 83, 85, 89, 100, 101, 102, 105, 108, 113, 142, 147, 150, 153, 154, 155, 166, 170, 172, 178, 179, 180, 184, 199, 201, 202, 203, 204, 205, 210, 211, 212, 217, 226, 227, 232, 240, 271, 279, 284 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

A087117(a(n)) = A038374(a(n)), see also A000975.

EXAMPLE

180 -> '10110100' with A087117(180)=2 and A038374(180)=2, therefore 180 is a term.

CROSSREFS

Sequence in context: A018288 A080792 A182656 * A192539 A046462 A188025

Adjacent sequences:  A090047 A090048 A090049 * A090051 A090052 A090053

KEYWORD

nonn,base

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Nov 20 2003

EXTENSIONS

Definition corrected, thanks to Leroy Quet. - Sep 17 2008

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Last modified February 16 06:45 EST 2012. Contains 205866 sequences.