|
%I #15 Apr 03 2014 11:39:43
%S 353942783,516743639,1163385647,1542243239,1932319583,2336924879,
%T 3113713259,3444631199,3878989487,4103787551,4166809919,4937621453,
%U 5123340683,5170931639,5184740299,5200683263,5390865059,5455982879,5467766947,5570566315
%N Positive integers n such that A005245(n) < min{ A005245(n-1) + 1, A005245(x) + A005245(y) } where x,y range over positive integers with x*y = n.
%C Counterexamples to the second conjecture of David Wilson on A005245.
%C a(1), a(2) were found by _Martin Fuller_; a(3) was found by _Janis Iraids_.
%C Prime terms are given by A189125.
%H Janis Iraids, <a href="/A189124/b189124.txt">Table of n, a(n) for n = 1..1000</a>
%H Martin N. Fuller, <a href="/A005245/a005245.c.txt">C program for A005245</a>
%Y Cf. A005245, A189123, A189125.
%K nonn,hard
%O 1,1
%A _Max Alekseyev_, Apr 17 2011
%E More terms from _Janis Iraids_, Apr 20 2011
|
