A023980 Sum of exponents in prime-power factorization of multinomial coefficient M(4n;2n,n,n).

3, 5, 8, 9, 11, 12, 17, 15, 17, 18, 20, 20, 24, 25, 26, 24, 27, 26, 30, 29, 32, 34, 37, 35, 37, 37, 37, 36, 39, 40, 44, 40, 41, 45, 45, 43, 48, 48, 51, 48, 51, 51, 56, 56, 55, 56, 60, 57, 59, 57, 59, 60, 63, 61, 63, 60, 63, 65, 68, 65, 71, 74, 73, 68, 69, 69, 73, 71, 75, 75, 77, 74, 78, 79, 81, 81

Offset

1,1

Links

Table of n, a(n) for n=1..76.

Crossrefs

Sequence in context: A134427 A065347 A085722 * A189029 A047624 A108594

Adjacent sequences: A023977 A023978 A023979 * A023981 A023982 A023983

Keyword

nonn

Author

Clark Kimberling

Status

approved