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A085883 Let r and s be such that r + s = n; a(n) = maximum value of tau(r) + tau(s). 3
2, 3, 4, 4, 5, 5, 6, 6, 7, 6, 8, 7, 8, 8, 9, 8, 10, 8, 10, 9, 10, 8, 12, 9, 10, 10, 11, 10, 12, 10, 12, 11, 12, 10, 14, 10, 12, 12, 13, 11, 14, 11, 14, 12, 13, 11, 16, 11, 14, 13, 14, 12, 16, 12, 15, 13, 14, 12, 17, 13, 14, 14, 16, 14, 17, 14, 16, 15, 16, 14, 18, 14, 16, 16, 17, 14 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,1

LINKS

Antti Karttunen, Table of n, a(n) for n = 2..16385

EXAMPLE

a(8) = 6, the partitions are (1,7), (2,6), (3,5), (4,4) which give 3, 6, 4 and 6 as the sum of the number of divisors of both parts.

PROG

(PARI) A085883(n) = { my(m=0); for(r=1, n-1, m = max(m, (numdiv(r)+numdiv(n-r)))); m; }; \\ Antti Karttunen, Dec 14 2017

CROSSREFS

Cf. A085887.

Sequence in context: A176504 A196162 A071940 * A265912 A094192 A093874

Adjacent sequences:  A085880 A085881 A085882 * A085884 A085885 A085886

KEYWORD

nonn,look

AUTHOR

Amarnath Murthy, Jul 08 2003

EXTENSIONS

More terms from David Wasserman, Feb 10 2005

STATUS

approved

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Last modified December 4 19:40 EST 2021. Contains 349526 sequences. (Running on oeis4.)