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Search: id:A093091
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| A093091 |
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"Fibonacci in pairs from left": start with a(1)=1, a(2)=1; repeatedly adjoin sum of previous two terms but chopped from the left into pairs of 2 digits. |
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+0
3
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| 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 14, 4, 10, 3, 18, 14, 13, 21, 32, 27, 34, 53, 59, 61, 87, 11, 2, 12, 0, 14, 8, 98, 13, 14, 12, 14, 22, 10, 6, 11, 1, 27, 26, 26, 36, 32, 16, 17, 12, 28, 53, 52, 62, 68, 48, 33, 29, 40, 81, 10, 5, 11, 4, 13, 0, 11, 6, 81, 62, 69, 12, 1, 91, 15, 16
(list; graph; listen)
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OFFSET
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1,3
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COMMENT
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Do all pairs of digits appear infinitely often? The sequence is not periodic.
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EXAMPLE
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... a(11)=a(9)+a(10), a(12)=left pair of (a(10)+a(11)=55+89=14 4),
a(13)=right pair of (a(10)+a(11)=55+89=14 4),
a(14)=left pair of (a(11)+a(12)=89+14=10 3),
a(15)=right pair of (a(11)+a(12)=89+14=10 3), a(16)=a(12)+a(13) ...
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CROSSREFS
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Cf. A093086, A093087, A093088, A093089, A093090.
Sequence in context: A132634 A096275 A093089 this_sequence A105471 A023441 A023442
Adjacent sequences: A093088 A093089 A093090 this_sequence A093092 A093093 A093094
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KEYWORD
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nonn,base
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AUTHOR
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Bodo Zinser (BodoZinser(AT)CosmoData.net), Mar 20 2004
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