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A108710
Start to read the sequence digit by digit and erase the first "1" you encounter, then the first "2", the first "3", etc., until the first "0"; go on from there and erase again the first "1", the first "2", etc., until "0" -- and so on, cyclically until the end of the (infinite) sequence. Concatenate what is left. The result is the concatenation of all integers of the sequence.
1
1, 12, 13, 24, 153, 627, 4819, 5031, 6223, 7445, 8617, 985900, 3112632, 4253677, 4849508, 16213749, 58657980, 90031121, 324653627, 482950316, 2737445864, 7985900811, 26324153677, 489950816253, 74958607980900, 311213241536274
OFFSET
1,2
COMMENTS
Fractal-like sequence
EXAMPLE
Sequence starts: 1 12 13 24 153 627 4819 5031... Erasing cyclically digits 1 --> 0 gives: . 1. 1. 2. 1.3 .2. 4.1. 5.3. which is the pattern of the sequence itself.
CROSSREFS
Cf. A108709.
Sequence in context: A140212 A123132 A050840 * A108709 A138821 A022102
KEYWORD
base,easy,nonn
AUTHOR
Eric Angelini, Jun 20 2005
STATUS
approved