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Search: id:A102167
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| A102167 |
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Lightest finite strictly increasing sequence of integers showing once and only once every pair of digits from [00] to [99]. The "weight" of such a sequence is the sum of all its a(n). Weight of this sequence is 2995. |
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2
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| 7, 19, 20, 23, 24, 25, 26, 27, 28, 29, 30, 34, 35, 36, 37, 38, 39, 40, 45, 46, 47, 48, 49, 50, 56, 57, 58, 59, 60, 67, 68, 69, 70, 78, 79, 80, 88, 90, 99, 100, 118, 122, 133, 144, 155, 166, 177
(list; graph; listen)
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OFFSET
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7,1
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COMMENT
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It seems that it is only a conjecture that this sequence is really the lightest! - njas, Mar 15 2005
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EXAMPLE
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Sequence starts with 7 19 20 23... showing pairs [71], [19], [92], [20], [02], [23]...
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CROSSREFS
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Sequence in context: A125257 A052256 A064819 this_sequence A109637 A039513 A125265
Adjacent sequences: A102164 A102165 A102166 this_sequence A102168 A102169 A102170
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KEYWORD
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base,easy,nonn,fini,full,nice
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AUTHOR
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Geoff Bailey, Richard Tucker, "Alex", and Eric Angelini (eric.angelini(AT)kntv.be), Feb 16 2005; revised Mar 15 2005
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