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Sum of exponents in prime-power factorization of binomial(5n, 2n+1).
1

%I #11 Nov 12 2017 06:09:14

%S 2,5,5,7,9,10,11,14,13,14,14,15,17,18,19,20,19,21,18,25,26,21,24,26,

%T 25,30,28,28,31,32,31,32,32,32,33,36,34,36,38,37,37,39,33,38,40,37,39,

%U 41,40,43,43,46,49,47,47,50,46,50,47,52,52,52,52,51,53,53,48,53,57,53,57,58,56,59,58,60

%N Sum of exponents in prime-power factorization of binomial(5n, 2n+1).

%H Ivan Neretin, <a href="/A023850/b023850.txt">Table of n, a(n) for n = 1..10000</a>

%t Table[PrimeOmega[Binomial[5 n, 2 n + 1]], {n, 76}] (* _Ivan Neretin_, Nov 09 2017 *)

%Y Cf. A023816-A023854.

%K nonn

%O 1,1

%A _Clark Kimberling_