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A023991 Sum of exponents of primes in multinomial coefficient M(3n; n+1,n,n-1). +0
1
1, 4, 6, 8, 8, 12, 12, 13, 13, 15, 17, 20, 19, 22, 21, 22, 21, 24, 25, 26, 25, 31, 30, 32, 30, 31, 33, 33, 32, 36, 34, 36, 34, 36, 36, 37, 36, 40, 40, 42, 40, 45, 48, 49, 49, 51, 50, 52, 49, 50, 50, 53, 50, 56, 53, 53, 53, 55, 58, 60, 59, 62, 60, 60, 55, 58, 59, 61, 60, 65, 62, 65, 63, 66, 69, 68 (list; graph; listen)
OFFSET

1,2

CROSSREFS

Sequence in context: A027709 A079775 A104173 this_sequence A103189 A083786 A165957

Adjacent sequences: A023988 A023989 A023990 this_sequence A023992 A023993 A023994

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified December 11 12:57 EST 2009. Contains 170656 sequences.


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