The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A068223 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A068223

Bit-masks of A068221 shown in binary.
(history; published version)

#3 by R. J. Mathar at Wed Jun 27 14:01:33 EDT 2012

STATUS

editing

approved

#2 by R. J. Mathar at Wed Jun 27 14:01:29 EDT 2012

AUTHOR

_Antti Karttunen (firstname.surname ), _, Feb 26 2002

STATUS

approved

editing

#1 by N. J. A. Sloane at Fri May 16 03:00:00 EDT 2003

NAME

Bit-masks of A068221 shown in binary.

DATA

1, 11, 11011, 1101100011011, 1101100011011000001101100011011, 110110001101100000110110001101100000000001101100011011000001101100011011, 110110001101100000110110001101100000000001101100011011000001101100011011000000000000110110001101100000110110001101100000000001101100011011000001101100011011

OFFSET

1,2

CROSSREFS

The width of central gap of the term a(n) (n>1)= 0, 1, 3, 5, 10, 12, ... is given by A068059(n-1)-1. Cf. A068224, A068739.

KEYWORD

nonn

AUTHOR

Antti Karttunen (firstname.surname ), Feb 26 2002

STATUS

approved