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A143591
Number of 1's in row n of A143589 (a Kolakoski fan).
2
1, 0, 2, 1, 2, 1, 4, 4, 8, 12, 18, 28, 40, 60, 91, 134, 203, 302, 455, 681, 1019, 1535, 2292, 3447, 5157, 7759, 11617, 17458, 26172, 39270, 58888, 88328, 132483, 198711, 298005, 447096, 670645, 1005943, 1509029, 2263285
OFFSET
1,3
COMMENTS
EXAMPLE
The first 6 rows of A143589 are 1; 2; 1,1; 2,1; 1,1,2; 2,1,2,2. The
respective numbers of 1's are 1,0,2,1,2,1.
CROSSREFS
KEYWORD
nonn
AUTHOR
Clark Kimberling, Aug 25 2008
STATUS
approved