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A023827 Sum of exponents in prime-power factorization of C(4n,n-1). +0
1
0, 3, 3, 6, 4, 7, 8, 10, 9, 11, 8, 11, 10, 15, 14, 16, 13, 16, 14, 18, 15, 17, 17, 21, 20, 21, 19, 20, 18, 22, 21, 26, 21, 26, 24, 27, 23, 26, 28, 28, 28, 30, 26, 30, 27, 29, 29, 33, 30, 33, 30, 33, 30, 33, 31, 33, 31, 33, 32, 36, 35, 39, 39, 42, 37, 40, 38, 41, 40, 42, 40, 44, 41, 45, 44, 46, 44, 46 (list; graph; listen)
OFFSET

1,2

CROSSREFS

Adjacent sequences: A023824 A023825 A023826 this_sequence A023828 A023829 A023830

Sequence in context: A143305 A051472 A048149 this_sequence A135986 A069734 A070952

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified October 10 20:39 EDT 2008. Contains 144831 sequences.


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