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A107042 First differences of indices of squarefree Catalan numbers. 0
1, 1, 1, 1, 2, 1, 1, 2, 6, 2, 12, 4 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,5
COMMENTS
First differences of A080664. Next term is > 9965.
LINKS
MATHEMATICA
Differences[Position[CatalanNumber[Range[2, 50]], _?SquareFreeQ]//Flatten] (* Harvey P. Dale, Dec 04 2017 *)
CROSSREFS
Cf. A000108.
Sequence in context: A298608 A327815 A007736 * A134830 A319031 A022874
KEYWORD
nonn
AUTHOR
Paul Barry, May 09 2005
STATUS
approved

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Last modified June 24 00:02 EDT 2024. Contains 373661 sequences. (Running on oeis4.)