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a(n) = the number of divisors of A139695(n).
2

%I #8 Apr 09 2014 10:14:07

%S 1,2,4,7,3,8,2,9,17,8,18,7,19,6,20,5,21,4,22,3,23,2,24,47,23,48,22,49,

%T 21,50,80,111,143,176,210,245,209,246,208,169,129,88,130,87,43,88,42,

%U 89,41,90,40,91,39,92,38,93,37,94,36,95,35,96,34,97,33,98,32,99,31,100,30

%N a(n) = the number of divisors of A139695(n).

%C |a(n)-a(n-1)| = n-1 for all integers >= 2.

%H Ray Chandler, <a href="/A139696/b139696.txt">Table of n, a(n) for n=1..90</a>

%Y Cf. A139695.

%K nonn

%O 1,2

%A _Leroy Quet_, Apr 29 2008

%E a(10)-a(90) from _Ray Chandler_, Jul 08 2009