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A048620 a(n) is the maximal value of Omega(binomial(n,k)) over k, where Omega = A001222. 1
0, 1, 1, 2, 2, 3, 2, 4, 4, 5, 4, 6, 5, 6, 5, 7, 6, 8, 6, 8, 8, 8, 6, 9, 9, 9, 10, 11, 10, 11, 9, 12, 12, 12, 11, 14, 13, 13, 11, 14, 12, 14, 12, 13, 14, 15, 12, 15, 15, 15, 14, 16, 14, 17, 15, 17, 17, 16, 14, 17, 15, 16, 14, 19, 18, 20, 18, 18, 18, 20, 17, 20, 19, 19, 19, 20, 19, 21 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

LINKS

Table of n, a(n) for n=1..78.

EXAMPLE

n=24: the values of Omega(binomial(24,k)) as k runs from 0 to 24 are {0, 4, 4, 5, 5, 7, 6, 8, 6, 8, 8, 9, 7, 9, 8, 8, 6, 8, 6, 7, 5, 5, 4, 4, 0}. The maximum is 9, so a(24)=9.

PROG

(PARI) a(n) = vecmax(vector(n+1, k, bigomega(binomial(n, k-1)))); \\ Michel Marcus, May 14 2018

CROSSREFS

Cf. A001222, A001221, A046660, A048273, A048275.

Sequence in context: A165418 A307797 A233777 * A291271 A308318 A165419

Adjacent sequences:  A048617 A048618 A048619 * A048621 A048622 A048623

KEYWORD

nonn

AUTHOR

Labos Elemer

STATUS

approved

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Last modified December 15 17:03 EST 2019. Contains 330000 sequences. (Running on oeis4.)