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A007968 Type of happy factorization of n. 12
0, 0, 1, 2, 0, 1, 1, 2, 2, 0, 1, 2, 1, 1, 1, 2, 0, 1, 1, 2, 1, 1, 1, 2, 2, 0, 1, 2, 1, 1, 1, 2, 2, 1, 1, 2, 0, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 2, 2, 0, 1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 2, 0, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 2, 0, 1, 2, 1, 1, 1, 2, 2, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 2, 0, 1, 1, 2, 2 (list; graph; refs; listen; history; internal format)
OFFSET

0,4

COMMENTS

a(A000290(n)) = 0; a(A007969(n)) = 1; a(A007920(n)) = 2.

LINKS

J. H. Conway, On Happy Factorizations, J. Integer Sequences, Vol. 1, 1998, #1.

Reinhard Zumkeller, Initial Happy Factorization Data for n <= 250

CROSSREFS

Sequence in context: A048881 A026931 A127506 * A077763 A030218 A127440

Adjacent sequences:  A007965 A007966 A007967 * A007969 A007970 A007971

KEYWORD

nonn

AUTHOR

J. H. Conway (conway(AT)math.princeton.edu)

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Last modified February 15 21:56 EST 2012. Contains 205860 sequences.