

A108237


Erase the oddindexed digits of the sequence and concatenate what is left. The result is the concatenation of all integers of the sequence.


0



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
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OFFSET

0,1


COMMENTS

Fractal slowest increasing such sequence.


LINKS

Table of n, a(n) for n=0..48.


EXAMPLE

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.


CROSSREFS

Sequence in context: A031032 A279769 A084854 * A084906 A232184 A232185
Adjacent sequences: A108234 A108235 A108236 * A108238 A108239 A108240


KEYWORD

base,easy,nonn


AUTHOR

Eric Angelini, Jun 17 2005


STATUS

approved



