A054350 Triangular array whose rows are successive generations of the Kolakoski sequence A000002.

1, 1, 2, 1, 2, 2, 1, 1, 2, 2, 1, 1, 2, 1, 1, 2, 2, 1, 1, 2, 1, 2, 2, 1, 2, 1, 2, 2, 1, 1, 2, 1, 2, 2, 1, 2, 2, 1, 1, 2, 1, 1, 2, 1, 2, 2, 1, 1, 2, 1, 2, 2, 1, 2, 2, 1, 1, 2, 1, 1, 2, 2, 1, 2, 1, 1, 2, 1, 2, 2, 1, 1, 2, 2, 1, 1, 2, 1, 2, 2, 1, 2, 2, 1, 1, 2, 1, 1, 2, 2, 1, 2, 1, 1, 2, 1, 2, 2, 1, 1, 2, 1, 1, 2, 1, 2, 2, 1, 2, 2, 1, 1, 2, 1

Offset

0,3

Links

Table of n, a(n) for n=0..113.

Example

Triangle begins:
1;
1, 2;
1, 2, 2, 1;
1, 2, 2, 1, 1, 2, 1;
1, 2, 2, 1, 1, 2, 1, 2, 2, 1, 2;
1, 2, 2, 1, 1, 2, 1, 2, 2, 1, 2, 2, 1, 1, 2, 1, 1, 2;
...

Crossrefs

Cf. A000002, A054348, A054349, A054350, A054351, A054352.

Row lengths give A054352.

Sequence in context: A075344 A144083 A332292 * A026606 A372469 A265918

Adjacent sequences: A054347 A054348 A054349 * A054351 A054352 A054353

Keyword

nonn,tabf,easy

Author

N. J. A. Sloane, May 07 2000

Extensions

More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 05 2003

Status

approved