A283511 Length of shortest prefix of the Kolakoski sequence K (A000002) containing all blocks of length n that appear in K.

2, 5, 8, 22, 23, 25, 156, 157, 158, 159, 306, 356, 357, 358, 359, 360, 503, 690, 1432, 1433, 1434, 1435, 1436, 1437, 1438, 3014, 4507, 6280, 7726, 7727, 7728, 7729, 7730, 7731, 7732, 7733, 7734, 7735, 16857, 16858, 16859, 30365, 30366, 30367, 30368, 30369, 30370, 30371, 30372, 30373, 30374, 30375

Offset: 1

Author

Jeffrey Shallit, Mar 09 2017

Keywords

• nonn

Examples

			The Kolakoski sequence contains 10 distinct blocks of length 4; the last to appear is 2121, which appears for the first time beginning at position 19 of K (indexing starting at position 1), so a prefix of length 22 contains all 10 length-4 subwords.
		

Crossrefs

Cf. A000002, A007782, A283512.