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Search: id:A108237
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| A108237 |
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Erase the odd-indexed digits of the sequence and concatenate what is left. The result is the concatenation of all integers of the sequence. |
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+0
1
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| 11, 21, 22, 31, 32, 42, 43, 51, 53, 62, 64, 72, 74, 83, 85, 91, 95, 131, 612, 1614, 1712, 1714, 1813, 1815, 1911, 1915, 2113, 2116, 2122, 2126, 2134, 2137, 2142, 2147, 2154, 2158, 2163, 2168, 2175, 2179, 2181, 2189, 2195, 2211, 3113, 3211, 4116, 4211, 4212
(list; graph; listen)
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OFFSET
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0,1
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COMMENT
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Fractal slowest increasing such sequence.
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EXAMPLE
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Sequence : 11,21,22,31,32,42,43,51,53,62,64,72,74,83,...
To erase :.*..*..*..*..*..*..*..*..*..*..*..*..*..*...
To keep .:..1..1..2..1..2..2..3..1..3..2..4..2..4..3...
leaving .:...11,...21,...22,...31,...32,...42,...43...
so when you concatenate all "kept digits" you get the concatenation of all integers of the original sequence.
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CROSSREFS
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Adjacent sequences: A108234 A108235 A108236 this_sequence A108238 A108239 A108240
Sequence in context: A096312 A031032 A084854 this_sequence A084906 A118853 A117841
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KEYWORD
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base,easy,nonn
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AUTHOR
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Eric Angelini (eric.angelini(AT)kntv.be), Jun 17 2005
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