

A105737


For n>2, a(n) > 0 is such that a(n1)^2+4*a(n2)*a(n) is a minimal square, a(1)=1,a(2)=4.


1



1, 4, 5, 6, 8, 8, 6, 2, 4, 6, 4, 2, 2, 4, 6, 4, 2, 2, 4, 6, 4, 2
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OFFSET

1,2


COMMENTS

The sequence depends on seed terms a(1) and a(2); if a(1)=1, a(3)=a(2)+1. All(?) sequences end with cycle={1,2,3,2,1} (or {2,4,6,4,2}, which essentially the same cycle) of length=5. This particular sequence does not merge with A105734  A105736 and ends with another cycle {2,4,6,4,2}.


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CROSSREFS



KEYWORD

nonn


AUTHOR



STATUS

approved



