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A023845
Sum of exponents in prime-power factorization of binomial(5n, n+3).
1
1, 5, 4, 8, 7, 8, 9, 12, 9, 12, 13, 14, 14, 16, 13, 18, 15, 17, 16, 22, 17, 18, 20, 21, 19, 24, 23, 26, 24, 24, 24, 27, 23, 25, 25, 28, 24, 29, 28, 32, 29, 30, 28, 33, 31, 31, 31, 32, 32, 36, 33, 39, 36, 38, 38, 42, 35, 43, 42, 45, 41, 39, 38, 41, 40, 40, 38, 44, 41, 42, 45, 47, 43, 47, 44, 48, 48
OFFSET
1,2
LINKS
MATHEMATICA
Table[Total[Transpose[FactorInteger[Binomial[5n, n+3]]][[2]]], {n, 80}] (* Harvey P. Dale, Aug 12 2012 *)
CROSSREFS
KEYWORD
nonn
STATUS
approved