A023849 - OEIS

A023849

Sum of exponents in prime-power factorization of binomial(5n, 2n-2).

0, 3, 4, 7, 7, 8, 11, 13, 11, 11, 13, 15, 17, 18, 18, 18, 19, 18, 18, 25, 20, 21, 24, 26, 24, 27, 28, 28, 29, 29, 31, 33, 30, 30, 33, 34, 32, 36, 37, 38, 36, 34, 33, 37, 38, 36, 39, 40, 40, 42, 40, 47, 45, 45, 47, 48, 45, 47, 49, 52, 50, 52, 52, 51, 51, 50, 50, 54, 52, 52, 57, 58, 55, 56, 57, 60, 63

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OFFSET

1,2

LINKS

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

MATHEMATICA

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

CROSSREFS

Cf. A023816-A023854.

Sequence in context: A241625 A081826 A021746 * A197034 A180020 A162431

Adjacent sequences: A023846 A023847 A023848 * A023850 A023851 A023852

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved