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Search: id:A003158
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| 2, 7, 10, 13, 18, 23, 28, 31, 34, 39, 42, 45, 50, 53, 56, 61, 66, 71, 74, 77, 82, 87, 92, 95, 98, 103, 108, 113, 116, 119, 124, 127, 130, 135, 138, 141, 146, 151, 156, 159
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Indices of b in the sequence closed under a -> abc, b -> a, c -> a, starting with a(1) = a; see A092606 where a = 0, b = 2, c = 1 . - DELEHAM Philippe (kolotoko(AT)wanadoo.fr), Apr 12 2004
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REFERENCES
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A. Brousseau, Fibonacci and Related Number Theoretic Tables. Fibonacci Association, San Jose, CA, 1972, p. 67.
L. Carlitz, R. Scoville and V. E. Hoggatt, Jr., Representations for a special sequence, Fib. Quart., 10 (1972), 499-518, 550.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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FORMULA
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a(n) = A003157(n) - 1 = A079523(n) + n . - DELEHAM Philippe (kolotoko(AT)wanadoo.fr), Feb 22 2004
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CROSSREFS
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Adjacent sequences: A003155 A003156 A003157 this_sequence A003159 A003160 A003161
Sequence in context: A030344 A029904 A026364 this_sequence A130336 A085303 A022886
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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