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Revision History for A023832

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A023832

Sum of exponents in prime-power factorization of C(4n,n+2).
(history; published version)

#5 by Harvey P. Dale at Sun Jun 01 11:27:37 EDT 2014

STATUS

editing

approved

#4 by Harvey P. Dale at Sun Jun 01 11:27:29 EDT 2014

LINKS

Harvey P. Dale, <a href="/A023832/b023832.txt">Table of n, a(n) for n = 1..1000</a>

MATHEMATICA

Table[Total[Transpose[FactorInteger[Binomial[4n, n+2]]][[2]]], {n, 80}] (* Harvey P. Dale, Jun 01 2014 *)

STATUS

approved

editing

#3 by Russ Cox at Fri Mar 30 18:55:53 EDT 2012

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

Clark Kimberling

Discussion

Fri Mar 30

18:55

OEIS Server: https://oeis.org/edit/global/285

#2 by N. J. A. Sloane at Fri May 16 03:00:00 EDT 2003

KEYWORD

nonn,new

nonn

AUTHOR

Clark Kimberling (ck6@cedar.(AT)evansville.edu)

#1 by N. J. A. Sloane at Sun Jun 14 03:00:00 EDT 1998

NAME

Sum of exponents in prime-power factorization of C(4n,n+2).

DATA

2, 3, 6, 6, 8, 6, 9, 10, 12, 10, 12, 12, 13, 12, 15, 16, 16, 16, 16, 17, 21, 16, 18, 20, 21, 19, 23, 20, 21, 20, 20, 26, 25, 23, 26, 27, 28, 24, 29, 29, 30, 31, 31, 29, 31, 26, 29, 33, 31, 31, 34, 32, 33, 31, 31, 33, 35, 33, 35, 36, 38, 35, 38, 40, 40, 39, 41, 41, 44, 40, 40, 46, 43, 43, 48, 44, 48

OFFSET

1,1

REFERENCES

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6@cedar.evansville.edu)

STATUS

approved