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A023851 Sum of exponents in prime-power factorization of binomial(5n, 2n+2). 1

%I #10 Nov 09 2017 21:08:56

%S 1,4,5,6,8,9,10,12,12,13,15,15,16,16,17,19,18,20,18,23,25,21,22,24,24,

%T 28,29,27,29,31,28,31,32,30,32,35,34,34,36,37,35,40,36,35,39,36,37,40,

%U 38,41,43,46,46,46,45,48,46,49,47,51,52,50,48,49,51,52,49,52,55,53,54,58,55,57,60,58,62

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

%H Ivan Neretin, <a href="/A023851/b023851.txt">Table of n, a(n) for n = 1..10000</a>

%t Table[PrimeOmega[Binomial[5 n, 2 n + 2]], {n, 77}] (* _Ivan Neretin_, Nov 09 2017 *)

%Y Cf. A023816-A023854.

%K nonn

%O 1,2

%A _Clark Kimberling_

%E Missing terms a(31), a(32) fixed by _Ivan Neretin_, Nov 09 2017

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Last modified March 29 02:23 EDT 2024. Contains 371264 sequences. (Running on oeis4.)