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A045998
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Binary Gleichniszahlen-Reihe (BGR) sequence: describe previous term (cf. A005150), reduce number of digits seen mod 2 (then for the purposes of this data-base, discard leading zeros).
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2
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1, 11, 1, 1011, 111001, 110011, 10001, 10111011, 1110111001, 1110110011, 1110010001, 1100111011, 100111001, 101100110011, 11100100010001, 11001110111011, 1001110111001, 1011001110110011, 111001001110010001
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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COMMENTS
| Terms with a leading zero: a(2),a(6),a(12),a(16),a(20),a(28),a(32),a(36),a(40),a(44),a(48),a(60),...
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REFERENCES
| N. Worrick, S. Lewis and B. Shrader, A possible formula for the length of BGR sequences, Graph Theory Notes of New York, XXXVI (1999), p. 25.
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EXAMPLE
| 1,11,01,1011,111001,110011,010001,... (after 110011, next term is 212021 -> 010001 -> 10001).
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CROSSREFS
| Cf. A005150, A045999, A048522.
Sequence in context: A093158 A132098 A160480 * A204848 A027645 A193925
Adjacent sequences: A045995 A045996 A045997 * A045999 A046000 A046001
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KEYWORD
| nonn,base,easy
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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EXTENSIONS
| More terms from Patrick De Geest (pdg(AT)worldofnumbers.com), Jun 15 1999.
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