A073572 Largest k such that the arithmetic mean of phi(n),phi(n+1),....,phi(n+x) is an integer for any x 0<=x<=k.

1, 0, 1, 1, 3, 2, 1, 1, 1, 2, 1, 1, 1, 1, 1, 3, 1, 1, 1, 4, 1, 1, 1, 1, 1, 2, 1, 2, 2, 2, 2, 1, 3, 1, 2, 2, 2, 1, 1, 1, 1, 1, 1, 3, 1, 2, 1, 2, 1, 1, 2, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 3, 1, 1, 1, 2, 2, 1, 1, 3, 1, 1, 1, 1, 2, 2, 1, 1, 1, 1, 1, 2, 1, 2, 1, 1, 2, 1, 1, 1, 2, 1, 2, 1, 1

Offset

1,5

Comments

largest k such that sum(i=0,x,phi(n+i))/(x+1) is an integer for 0<=x<=k.

Links

Table of n, a(n) for n=1..105.

Crossrefs

Sequence in context: A306709 A184532 A016557 * A073356 A093032 A072115

Adjacent sequences: A073569 A073570 A073571 * A073573 A073574 A073575

Keyword

easy,nonn

Author

Benoit Cloitre, Sep 01 2002

Status

approved