A023843 Sum of exponents in prime-power factorization of C(5n,n+1).

2, 5, 4, 7, 7, 10, 8, 11, 9, 12, 12, 15, 15, 15, 14, 17, 15, 18, 15, 21, 19, 20, 18, 22, 19, 24, 24, 25, 25, 27, 24, 26, 25, 24, 24, 28, 25, 29, 27, 32, 27, 33, 27, 30, 34, 33, 31, 33, 32, 35, 34, 40, 37, 40, 38, 41, 37, 42, 39, 46, 42, 42, 38, 40, 39, 42, 38, 42, 42, 43, 44, 47, 44, 46, 45, 48, 49

Offset

1,1

Links

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

Mathematica

Table[PrimeOmega[Binomial[5 n, n + 1]], {n, 77}] (* Ivan Neretin, Nov 08 2017 *)

Crossrefs

Sequence in context: A107921 A171760 A085801 * A153990 A154811 A309513

Adjacent sequences: A023840 A023841 A023842 * A023844 A023845 A023846

Keyword

nonn

Author

Clark Kimberling

Status

approved