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A275308 Starting terms for the second half of the Kolakoski sequence 0
2, 1, 2, 2, 2, 1, 2, 2, 1, 1, 2, 2, 1, 2, 1, 1, 2, 2, 2, 2, 2, 1, 2, 1, 2, 2, 2, 2, 1, 1, 1, 2, 1, 1, 2, 1, 1, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 1, 2, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

When building the Kolakoski sequence (A000002) using substitutional generation, this is the first term that comes from the second 2.  Or equivalently, this is the first new term added to the previous sequence.

LINKS

Table of n, a(n) for n=1..50.

EXAMPLE

.   22

.    ^

.   2211

.     ^

.   221121

.       ^

.   221121221

.         ^

.   22112122122112

.            ^

To obtain the first 5 terms: 2, 1, 2, 2, 2.

CROSSREFS

Cf. A000002.

Sequence in context: A167866 A101422 A070304 * A233138 A214708 A083952

Adjacent sequences:  A275305 A275306 A275307 * A275309 A275310 A275311

KEYWORD

nonn,more

AUTHOR

David Spies, Jul 22 2016

STATUS

approved

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Last modified January 18 16:40 EST 2019. Contains 319271 sequences. (Running on oeis4.)