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A023848 Sum of exponents in prime-power factorization of binomial(5n, 2n-1). 1
1, 5, 4, 8, 6, 10, 11, 13, 11, 15, 13, 16, 16, 18, 18, 20, 18, 20, 18, 25, 21, 23, 22, 27, 24, 30, 28, 28, 28, 31, 32, 33, 29, 33, 32, 36, 32, 36, 37, 39, 35, 40, 32, 37, 38, 38, 39, 40, 40, 43, 41, 48, 44, 47, 47, 49, 45, 50, 47, 53, 50, 53, 50, 52, 50, 54, 50, 52, 53, 54, 57, 58, 55, 59, 57, 62 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Ivan Neretin, Table of n, a(n) for n = 1..10000

MATHEMATICA

Table[PrimeOmega[Binomial[5 n, 2 n - 1]], {n, 77}] (* Ivan Neretin, Nov 09 2017 *)

CROSSREFS

Cf. A023816-A023854.

Sequence in context: A198579 A003672 A081818 * A065015 A295162 A002340

Adjacent sequences:  A023845 A023846 A023847 * A023849 A023850 A023851

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified March 18 17:51 EDT 2019. Contains 321292 sequences. (Running on oeis4.)