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A068224 Bit-masks of A068222 shown in binary. 5
1, 11, 11011, 1101100011111, 1101100011011000001101111011011, 110110001101100000110110001101100000000001111111011111110001111111111111, 110110001101100000110110001101100000000001101100011011000001101100011011000000000000110110001101111011110110111101111011000111111100011011111111101111111011 (list; graph; refs; listen; history; internal format)
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. A068223, A068739.

Sequence in context: A118557 A138713 A068223 * A066945 A113615 A034873

Adjacent sequences:  A068221 A068222 A068223 * A068225 A068226 A068227

KEYWORD

nonn

AUTHOR

Antti Karttunen (firstname.surname ), Feb 26 2002

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Last modified February 17 16:39 EST 2012. Contains 206058 sequences.